# Matlab 3d Cell Array

0 to allow us to collect arrays of different sizes and types. We assume that you are doing this tutorial after completing the previous tutorial. The load command requires that the data in the file be organized into a rectangular array. The Structure Data Type in Matlab. You can use cell to preallocate a cell array to which you assign data later. f1 have the same contents. I recently had a situation where I needed to delete an entry from a cell array. f1 and s(2). I would like. Create cell array with the same string n-times. If a string array represents numbers, then you can convert it to a numeric array using the double function. This matlab class implements volumetric (cell) array manipulation routines for volume images. I need to multiply each of these cell elements, where the number of cells is not constant, with a single scalar value. Say i have a cell array like this Fruits = 'Apple' 'Cherry' 'Lime' 'Apricot' 'Chestnut' and I create a 5x5 cell array liek this fruit1 = cell(5,5) Is there a way to put the fruits into fruit1 cell array in ONLY 5 random places. Mine did exactly what he asked but we know that people usually come back and say "but it did not work for the string 'a b 3 xyz 2. Loop Through a Cell Array. For example, the array [1,2,3] counts as a vector. I would like to create a 3d-sparse matrix. How to get multiple 3D arrays into a cell array Learn more about cell arrays, 3d arrays. you find a MATLAB file in the dropbox-link, containing a 1x1. Each of the pixels that represents an image stored inside a computer has a pixel value which describes how bright that pixel is, and/or what color it should be. Toggle Main Navigation. I now want to find the line number(s) of the row where column one is 1 and column 2 is A. The size of this matrix or array is a minimum of 0-by-0 and this can grow up to a matrix or array of any size. Be sure to use quantitative numeric data, like item amounts or test scores. Multidimensional arrays are an extension of 2-D matrices and use additional subscripts for indexing. Multidimensional arrays in MATLAB are an extension of the normal two-dimensional matrix. Next I try preallocating r as a cell (r = cell(1,5)). It's somewhat confusing so let's make an analogy. MATLAB provides 15 fundamental data types. The elements of the cell array must all contain the same data type, and the resulting array is of that data type. How to Create a Matrix, Vector, and Cell Array in MATLAB. Community Home;. In this solution, your original cell array is named ' a ' and the list of elemets to add to ' a ' are stored in cell array 'b' which is the same length as 'a'. , String[]). Background. One option:. There are a few possible issues with your approach: First of all, Matlab indexing is different from c-style indexing into tables. Learn more about matlab. These variables or functions do not automatically appear in the MATLAB workspace. f4 and s(2). It can be run both under interactive sessions and as a batch job. Stromal cell-laden 3D hydrogel microwell arrays as tumor microenvironment model for studying stiffness dependent stromal cell-cancer interactions Contact points between the probe and samples were determined by in house developed MATLAB code to identify Young's moduli of hydrogels using. Recently, I have met a question that a saying goes that for large linear system: iterative methods are required because of memory problem of direct methods. How can i convert this cell into a 3d matrix of size 104x104x1000 ??. MATLAB Answers. Cell Arrays Cell arrays were introduced in MATLAB 5. 16 videos Play all Cell Arrays, Struct How to create a 3D Terrain with Google Maps and height maps in Photoshop. I found these really, really useful in my work so I wanted to show them to you here. Lien : Cell Arrays :: Classes (Data Types) (MATLAB®) Lien : Cell Arrays and Their Contents, by Loren Shure. Every data type stores data that is in the form of a matrix or array. This is a pyramidal horn, and has a width B and height A at the end of the horn. pvalues — Parameter values cell array The following ROS data types are supported as values of parameters. Otherwise, the results are undefined. myCell= struct2cell(S); So, I obtained a 3d cell array myCell 13x1x96, and I would like to transform it in a 2d cell array 96x13. These variables or functions do not automatically appear in the MATLAB workspace. Delete Data from Cell Array. Arrays are one of the basic building blocks of MATLAB. Every data type stores data that is in the form of a matrix or array. But I am unable to convert Cell array to number array. Access Data in Cell Array. Open Mobile Search. There seems to be an natural progression that occurs for users of data anaylsis programs. By reading the class documentation in the source file, you can create the following MATLAB ® graph:. So you can think of a cell array like a matrix. I would like to create a 3d-sparse matrix. How can i convert this cell into a 3d matrix of size 104x104x1000 ??. How can i convert this cell into a 3d matrix of size 104x104x1000 ??. Other comments are probably good for answering the CSV question, but I'd step back and ask why CSV? If you simply want to get a MATLAB 3D array into Python you don't need CSVs to do that. i have a cell array of size 104x104 with each cell having a matrix of size 1x1000. Without looking at his code, I asked if he had tried using strfind, despite his data not being strings. Making a animation of multiple 3D. getNewData method. from cell array to numeric vector. Is the cell array 3D or 1x58? Is the content of each cell 1x58 or with multiple rows? Maybe, it is a 3D cell array (what size?) where each cell itself contains a 1x58 cell array and where each cell of that sub-cell array is a Nx14 matrix. For example:. The cell array is a Matlab container for the storage of series of objects in the memory workspace. In the Convert Nested System. Arrays are one of the basic building blocks of MATLAB. the first thing to do is to convert your 2d cell array of 1d vectors into a 3d matrix. My goal is to convert 192x88x3 matrix to 3x1 cell array which includes 192x88 arrays. This MATLAB function returns logical 1 (true) if A is a cell array and logical 0 (false) otherwise. NET Data Example of Cell Arrays of. myCell is a 2-by-3 cell array. Arrays in MATLAB obey the same rule as their mathematical counterpart: by default, the matrix definitions of operations are used, unless a special operator called the dot operator is applied. A row vector is an array with 1 row, M columns. Certain functions, such as solve and symReadSSCVariables, can return a vector of symbolic variables or a cell array of symbolic variables and functions. I have tried with. All characters in delimiter are inserted as literal text, and escape sequences are not supported. mashtine search for "MATLAB Big Data" and you will find lots of discussions on. For example, let's create a two-dimensional array a. Let's go ahead and clear the screen and I'm going to clear the workspace while we're at it. One option:. In computer science, an array data structure, or simply an array, is a data structure consisting of a collection of elements (values or variables), each identified by at least one array index or key. In this section, we examine strings and string operations as well as two very important Matlab data structures: cell arrays, and structs. Now I want to make a 3D plot with x=1:80, y=k=1:10 and z my cell array. mat file, which Python can read with scipy. To create a cell array with a specified size, use the cell function, described below. For example, maybe you want to plot column 1 vs column 2, or you want the integral of data between x = 4 and x = 6, but your vector covers 0 < x < 10. Ofc, I know that matlab's toolbox doesn't have it so far. I would like to create a 3d-sparse matrix. This MATLAB function returns logical 1 (true) if A is a cell array and logical 0 (false) otherwise. He found that it solved his problem and was faster than his M-file. It enables the automatic quantification of cell characteristics for a large number of cells in 3D. A row vector is an array with 1 row, M columns. An array is a structure that allows you to store multiple values under one name. Each cell is composed 1x728. If A is a cell array or a structure, then string arrays in any cell or field of A become character vectors or cell arrays of character vectors in B. Sean's pick this week is Flatten (Nested) Cell Arrays by Yung-Yeh. Because value1 is a numeric array and not a cell array, both s(1). The cell arrays for value2 and value3 are 1-by-2, so s is also 1-by-2. How to replace strings in a cell array. The size of this matrix or array is a minimum of 0-by-0 and this can grow up to a matrix or array of any size. f1 have the same contents. This is important in cases when we need to pass information to a Java function that expects an array (e. I would like to create a 3d-sparse matrix. Learn more about loop, cell array. Matplotlib now directly. The first two are just like a matrix, but the third dimension represents pages or sheets of elements. You clicked a link that corresponds to this MATLAB command: Run the command by entering it in the MATLAB Command Window. In the Convert Nested System. The elements of the cell array must all contain the same data type, and the resulting array is of that data type. For example, let's create a two-dimensional array a. Cell arrays commonly contain either lists of character vectors of different lengths, or mixes of strings and numbers, or numeric arrays of different si. The distinction between row vectors and column vectors is essential. matlab Newsgroup [email protected] Cell arrays in Matlab use the curly bracket {} notation instead of the normal parentheses (). MATLAB provides the frontend user interface through a COM interface to control OpenDSS. myCell= struct2cell(S); So, I obtained a 3d cell array myCell 13x1x96, and I would like to transform it in a 2d cell array 96x13. Open Mobile Search. Learn more about cell array. Hi, I have a cell array that contain a number of different sized matrices. Grouped Box Plot with 3D Array. i would like to take the values of the cell array with 2 'C' and a 2 in total_table and match them up to another cell array MAP1 (the same structure as wordmc) using ismember. Without looking at his code, I asked if he had tried using strfind, despite his data not being strings. Asked by mashtine. A vector is a one-dimensional array. Otherwise, the results are undefined. Individuals elements are accessed or created with the curly bracket {} notation. You can index into, reshape, and concatenate string arrays using standard array operations, and you can append text to strings using the + operator. 1D Arrays & Vectors. f1 have the same contents. i have a cell array of size 104x104 with each cell having a matrix of size 1x1000. matlab Newsgroup [email protected] i would like to take the values of the cell array with 3 'C' tags and a 3 in total_table and match them up to MAP1 using ismember. append cell array #2 to cell array #1 to get a Learn more about cell arrays, cell array, concatenate. To create a cell array with a specified size, use the cell function, described below. Now let's say you have an array of buckets - an array of cells or a "Cell Array". It can store a whole volume as a cell array. Visually, an array can be represented as a grid, where each cell represents an open area for information. So, the first thing to do is to convert your 2d cell array of 1d vectors into a 3d matrix. It integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in common mathematical notation. I just wanted to jot down a few points about Matlab programming. I have a follow up question. Graph A simple example of communication from the Arduino board to the computer: The value of analog input 0 is sent out the serial port. What Loren helped me realize is that cell arrays use () just like regular MATLAB arrays to index into elements of the array, while. Ask Question Asked 7 years, 11 months ago. I'm writing a program in order to calculate the time of appearance of each word in a txt document(a novel, for about 300,000 words). Result: Nonscalar arrays of function handles are not allowed; use cell arrays instead. MATLAB Marina Navigating the high seas of programming using MATLAB Cell Arrays. Any type (numeric, boolean, strings) of information can be stored in an array and its size is adjustable. An array having more than two dimensions is called a multidimensional array in MATLAB. We also discuss the new (2008b) container. For more information, see Represent Dates and Times in MATLAB or watch Date and Time Arrays. MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and proprietary programming language developed by MathWorks. But, each element in that matrix can be a different data type. He found that it solved his problem and was faster than his M-file. cell, a library which defines a cell array, a generalization of an array which can compactly store and retrieve vector or matrix data of varying size, such as the rows of a triangular matrix. I used mat2cell in MATLAB but the result is 1x1x3 cell array which looks weird. MATLAB® returns the contents of the cells as a comma-separated list. In this solution, your original cell array is named ' a ' and the list of elemets to add to ' a ' are stored in cell array 'b' which is the same length as 'a'. , String[]). Learn more about cell arrays, 3d matrix. myCell{i}{j} is the j-th element of the cell array that is contained in the i-th element of the cell array myCell. mashtine search for "MATLAB Big Data" and you will find lots of discussions on. Cell arrays are available both in Matlab and in the standalone versions of Dynamo. 94 × 10-6 w shown in Fig. max) [v i] = max(a) return indices, i: pmax(b,c) max(b,c) pairwise max: apply(a,2,cummax) cummax(a). This means you're free to copy and share these comics (but not to sell them). There are two ways of doing this: A) Using brackets operator B) Using concatenating functions A. a group of entertainers or guests engaged as players in a quiz or guessing game on a radio or television program. Here, ﬁmanipu-. i have a cell array of size 104x104 with each cell having a matrix of size 1x1000. But I am unable to convert Cell array to number array. On a worksheet, type the input data in one column, adding a label in the first cell if you want. Since MATLAB is a program offering endless possibilities, being able to. Let's go ahead and clear the screen and I'm going to clear the workspace while we're at it. All other cells or fields of A are unaltered in B. How can i convert this cell into a 3d matrix of size 104x104x1000 ??. Learn more about cell2mat cell excel, cellfun MATLAB. Matlab includes built-in support for automatic conversion of Matlab cell arrays into Java arrays. Visually, an array can be represented as a grid, where each cell represents an open area for information. Heterogeneous cell arrays cannot be variable-size. A cell array is simply an array of those cells. The elements of the cell array must all contain the same data type, and the resulting array is of that data type. If A is a cell array or a structure, then string arrays in any cell or field of A become character vectors or cell arrays of character vectors in B. How I can extract the data from the cells. Foire Aux Questions sur MATLAB. Ask Question MATLAB: index a cell array with cell array of arrays and return a cell array. A Structure is a named collection of data representing a single idea or "object". Pyramidal horn antenna. For more information, see Represent Dates and Times in MATLAB or watch Date and Time Arrays. I forward the compliments to Matlab, which allows such. Note that this relies on the internal implementation of cell arrays in Matlab, and may possibly. We also discuss the new (2008b) container. Then I add the down-diagonals, subtract the up-diagonals, and simplify for the final answer: There are other methods for simplifying determinants by hand, and these other methods are required when evaluating larger determinants by hand, but those methods can probably wait until later. Arrays in MATLAB obey the same rule as their mathematical counterpart: by default, the matrix definitions of operations are used, unless a special operator called the dot operator is applied. myCell is a 2-by-3 cell array. I just wanted to jot down a few points about Matlab programming. 2 Arrays To shift and rotate the elements of an array Xalong dimension dim, ﬁrst initialize a subscript cell array with idx = repmat({':'}, ndims(X), 1); % initialize subscripts n = size(X, dim); % length along dimension dim then manipulate the subscript cell array as appropriate by using one of. A cell is like a bucket. My goal is to convert 192x88x3 matrix to 3x1 cell array which includes 192x88 arrays. 0 to allow us to collect arrays of different sizes and types. Multidimensional arrays in MATLAB are an extension of the normal two-dimensional matrix. Determine the length of a 3D cell array (?) Learn more about struct, lentgh of array within it. scanato Unladen Swallow. The Histogram tool won’t work with qualitative numeric data, like identification numbers entered as text. The first two are just like a matrix, but the third dimension represents pages or sheets of elements. Ofc, I know that matlab's toolbox doesn't have it so far. Just a casual MATLAB coder dropping by this older thread on a hunt for answers. This tutorial gives you aggressively a gentle introduction of MATLAB programming language. I tried converting cell array to Table & extracted table column 1 but the result is again a cell array since values in Table are of String Type. myCell{i}{j} is the j-th element of the cell array that is contained in the i-th element of the cell array myCell. Inside a structure are a list of fields each being a variable name for some sub-piece of data. Users are encouraged MATLAB Marina is licensed under a Creative Commons. f4 and s(2). Limitations of MATLAB • MATLAB is NOT a general purpose programming language. Active 7 years, 6 months ago. Cell and Struct Arrays in Matlab: Part 1 (of 16) packardEDU. f4 have the same contents. Multidimensional arrays are an extension of 2-D matrices and use additional subscripts for indexing. The cell arrays for value2 and value3 are 1-by-2, so s is also 1-by-2. f1 have the same contents. myCell is a 2-by-3 cell array. I recently have been using webread to scan websites and mine information to do data analysis with. For anything in a computer more complicated than a list of numbers, structures can be used. MATLAB is a high-performance language for technical computing. These row and column names can be used just like you use names for values in a vector. You also can use the {} operator to create an empty 0-by-0 cell array. Plotting a cell array. 0 to allow us to collect arrays of different sizes and types. Next I try preallocating r as a cell (r = cell(1,5)). Now let's say you have an array of buckets - an array of cells or a "Cell Array". So, the first thing to do is to convert your 2d cell array of 1d vectors into a 3d matrix. MATLAB® expands the cell array to a rectangle that includes the specified subscripts. How to plot a 3D array Hi, I am just a begineer and got to plot the multi-dimensional array in 3D and also need to show the different colors for. All I want to do is print a cell array so that it doesn't show the quotations or brackets. i have tried cell2mat but it gives following error: "CELL2MAT does not support cell arrays containing cell arrays or objects" please help. Because each cell can contain a different type of data, you. Cell Arrays. f1 have the same contents. Null Byte is a white hat hacker world for anyone interested in hacking, science, networking, social engineering, security, pen-testing, getting root, zero days, etc. MATLAB® returns the contents of the cells as a comma-separated list. There are a few possible issues with your approach: First of all, Matlab indexing is different from c-style indexing into tables. Plotting a cell array. Find an vector in a cell array. In the Convert Nested System. Asked by Maryam Hamrahi. Cell and Struct Arrays in Matlab: Part 1 (of 16) packardEDU. Besides, I need to plot the curve, the axes should be "time of appearance" and "range of time of appearance". f4 and s(2). cell also converts certain types of Java ®,. Learn more about loop, cell array. Both cell arrays and structures can be used to store values that are different types in a single variable. Because value1 is a numeric array and not a cell array, both s(1). These variables or functions do not automatically appear in the MATLAB workspace. There are times where you have a lot of data in a vector or array and you want to extract a portion of the data for some analysis. Users are encouraged to read through the following primer: 1D Arrays & Vectors Primer. MATLAB automatically builds the array as you go along. Learn more about cell2mat cell excel, cellfun MATLAB. Otherwise, the results are undefined. I have a follow up question. A cell array is a data type with indexed data containers called cells, where each cell can contain any type of data. For each ROS data type, the corresponding MATLAB data type is also listed:. In this section, we examine strings and string operations as well as two very important Matlab data structures: cell arrays, and structs. Learn more about loop, cell array. I have a cell array that contains T1-001, T2-001, T1-002, T2-002T2-058. i would like to take the values of the cell array with 3 'C' tags and a 3 in total_table and match them up to MAP1 using ismember. I made the following function, which does this but also replaces the values in all other columns with 0. MATLAB i About the Tutorial MATLAB is a programming language developed by MathWorks. f1 have the same contents. Need Immediate X-ray Inspection? North Star Imaging’s Inspection Services Group provides real-time X-ray inspection and 3D industrial CT scanning services to virtually anyone needing to verify the integrity of internal components. Each element is defined by two subscripts, the row index and the column index. , String[]). myCell= struct2cell(S); So, I obtained a 3d cell array myCell 13x1x96, and I would like to transform it in a 2d cell array 96x13. if these are 20, then NMask(:,:,20)). Cell arrays commonly contain either lists of character vectors of different lengths, or mixes of strings and numbers, or numeric arrays of different si. Each element is defined by two subscripts, the row index and the column index. I just wanted to jot down a few points about Matlab programming. Learn more about cell2mat cell excel, cellfun MATLAB. What Loren helped me realize is that cell arrays use () just like regular MATLAB arrays to index into elements of the array, while. cell also converts certain types of Java ®,. Merge 3D matrices into one cell array without using a loop. An array is a collection of variables that are accessed with an index number. Some software companies argue that they do not have to do a good job of performance tuning because computer hardware is advancing so rapidly. i would like to take the values of the cell array with 3 'C' tags and a 3 in total_table and match them up to MAP1 using ismember. This video shows how to cast the values of a cell array so that this constraint is met. More details. Stromal cell-laden 3D hydrogel microwell arrays as tumor microenvironment model for studying stiffness dependent stromal cell-cancer interactions Contact points between the probe and samples were determined by in house developed MATLAB code to identify Young's moduli of hydrogels using. If A is a string array, then B is a character vector or cell array of character vectors. Because value1 is a numeric array and not a cell array, both s(1). Indexing vectors and arrays in Matlab. Computational fluid dynamics (CFD) is a tool with amazing flexibility, accuracy and breadth of application. you find a MATLAB file in the dropbox-link, containing a 1x1. Cell arrays are special kinds of arrays that can hold any type of information. Making a animation of multiple 3D. Open Mobile Search. Introduction to Matrices in Matlab >> whos Name Size Bytes Class A 3 x3 72 double array B 3 x3 72 double array v 1 x5 40 double array Grand total is 23 elements using 184 bytes. The MATLAB load Command. Strings, Cells, Structs, Containers, and Sets. Recently, my colleague Jeff asked me if I would look at some code he wrote to find a pattern of numbers in a larger array. You can add, subtract, sort, compare, concatenate, and plot date and time values. Matlab to Python conversion¶. The first two are just like a matrix, but the third dimension represents pages or sheets of elements. Limitations of MATLAB • MATLAB is NOT a general purpose programming language. There seems to be an natural progression that occurs for users of data anaylsis programs. There are two handy Matlab instructions for this purpose: xlsread and xlswrite. This article covers how to create matrices, vectors, and cell arrays with the programming software MATLAB. Mean values of cell arrays. I have a Y array (46x1 cell). You also can use the {} operator to create an empty 0-by-0 cell array. First, learn how to create basic variables and cell arrays, and work with the core MATLAB syntax, which is significantly different than other programming languages. Because arrays operations are so similar to the equivalent mathematical operations, a basic knowledge of linear algebra is mandatory to use matlab. The Structure Data Type in Matlab. I forward the compliments to Matlab, which allows such. For example, maybe you want to plot column 1 vs column 2, or you want the integral of data between x = 4 and x = 6, but your vector covers 0 < x < 10. It's up to you how you map the cell array / vector dimensions to the matrix dimensions. Visually, an array can be represented as a grid, where each cell represents an open area for information. It was mentioned earlier that the power calculated using the (specific) power spectral density in w/kg must (because of the mass of 2-kg) come out to be one half the number 4. txt, readingtextfiles, help, formattingcellarrays MATLAB. Cell arrays commonly contain either lists of character vectors of different lengths, or mixes of strings and numbers, or numeric arrays of different si. In the Convert Nested System. Cell arrays are available both in Matlab and in the standalone versions of Dynamo. Thank you for your response btw. matlab Newsgroup [email protected] r/matlab: Official MATLAB subreddit - a place to discuss the MATLAB programming language and its implementation. Multidimensional arrays are an extension of 2-D matrices and use additional subscripts for indexing. This is one of the best practices that we will discuss in more detail later on. There is more than one way to read data into MATLAB from a file. Cell Arrays Cell arrays were introduced in MATLAB 5. Inside a structure are a list of fields each being a variable name for some sub-piece of data. cell also converts certain types of Java ®,. Stars and Their Cars - 30 Vintage and Classic Cars Owned by Pop Culture Icons. But your method is more flexible than mine. I try to plot it now in a 3D plot but I do not know how to do it: Discover what MATLAB. from cell array to numeric vector. Create cell array with the same string n-times. For example, let's create a two-dimensional array a. Matlab to Python conversion¶. Hi, I have a cell array that contain a number of different sized matrices. 此 matlab 函数 将表 t 转换为元胞数组 c。t 中的每个变量都会成为 c 中的元胞列。. Need Immediate X-ray Inspection? North Star Imaging’s Inspection Services Group provides real-time X-ray inspection and 3D industrial CT scanning services to virtually anyone needing to verify the integrity of internal components. When I tried A{3} = [ ], I did not delete the third element, I actual just set it to [ ]. Learn more about cell, cell array, find, search. Active 7 years, 6 months ago. Ofc, I know that matlab's toolbox doesn't have it so far. I need to multiply each of these cell elements, where the number of cells is not constant, with a single scalar value. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: