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Sum two values coming from eval
Plenty of problems with your code. For a start set as you use it does not return a value, so there is nothing to sum. I'm goin...

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plotting a graph for cell
The simplest way to plot each vector: figure; hold on; hlines = cellfun(@plot, yourcellarray); This will plot each vector in...

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Counting the number of elements of a vector found between a range in another vector
Frankly, the way you've stored your data is rubbish and making your work much harder. Firstly, Your ranges shouldn't be stored ...

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solving the problem with the error message 'Dot indexing is not supported for variables of this type.'
The error stems from a major bug in the code. length(imagesXml) is wrong, it's always going to return 1 regardless of the number...

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Why aren't sparse matrices padded with zeros to the highest sizes?
sparse is just a method for efficiently storing matrices that contain lots of zeros. It doesn't change the fact that matrices ha...

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I have a text file which has one column and large number of rows with 1 or -1 as the values. I need to convert this into signed binary values(01 and 11). how should i update it?
I'd do it like this: numbers = readtable('temp.txt', 'ReadVariableNames', false); binary = table(dec2bin(typecast(int8(numbers...

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i am given a large matrix and i am asked to find the standard deviation of the first 163 numbers on the list. please help me
What's the problem? std(A(1:163))

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How to create a string with names that differ, without a loop?
compose works exactly that way: D_N = compose('K%d', 1:39) Another option is to use string arrays: D_N = "K" + (1:39) which ...

más de 7 años hace | 1

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How to concatenate tables with the same number of variables but different number of rows?
AA.mat, etc. are mat files not tables. Each of these file could contain any number of variables. Possibly, each of these only co...

más de 7 años hace | 0

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Unable to perform assignment because the left and right sides have a different number of elements.
I've not tried to find where your error is coming from, particularly as you've omitted the most important information: the full ...

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Matlab 2017b library functions don't match online documentation.
I's no surprise that the documentation you're looking at doesn't match what happens in your version of matlab. The documentation...

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Extract submatrix using a sliding window
I don't see how replicating the rows is going to save you time. You're just using more memory to store the same information. How...

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finding the max ?
maxvalue = max(x); positions = find(x == maxvalue); No loop needed

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How to append labels from one table to another based on certain conditions?
Sounds like you want a left outerjoin between your two tables: joinedTable = outerjoin(tableA, tableB, 'Keys', 'Code', 'Type', ...

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Undefined operator '-' for input arguments of type 'cell'.
Your code expect ffmin to be a matrix. We can deduce from the error that it is not, it's a cell array. And indeed subtraction is...

más de 7 años hace | 0

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Ordering data based on previous data value
You will have to use an iterative method to do what you want. m = [39.28 12.45; 42.85 0.00; 48.14 0.00; 53.67 9.21; 42.80 1...

más de 7 años hace | 0

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Extracting the index numbers of greater than zero values of an array in different / separate sets MATLAB
startends = find(diff([0, yourarray > 0, 0])); startends = reshape(startends, 2, [])'; startends(:, 2) = startends(:, 2) - 1

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I have this code, where 'data' changes its size with every loop and has to be divided into four equal segments. This division has to be stored in variable 'epoch'. storing it in cell variable isn't an option. How can I store differen lengths of data?
epoch = reshape(signal, [], 4).' No need for a loop.

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Sorting a custom enumeration
You should be able to sort your enumeration class if you derive it from a numeric class: classdef myGreatEnum < double enu...

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Image authentication using color information
1. Dividing an image of size HxW into MxN blocks where M and N are divisors of H and W respectively: %inputs: % img: an image ...

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Generating random 20 number between 0.25 to 2.8 and counter odd numbers in 'array'?
It seems to me what you're actually asking is to generate integer numbers between 250 and 2800. These numbers can easily be test...

más de 7 años hace | 0

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Add elements in matrix without sum-function
"The result I get is the same element in the matrix multiplied with the numel(A)." Well, yes, you never change a inside the loo...

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Bwboundaries to always start from lowest x,y positions for given object
Simply, you would have to cirscshift each boundary array so that the maximum of the 1st column is the first row. I'm not sure wh...

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How to find the first empty row of a .xlsx-file?
So, in matlab, the unusedRow = Cells.SpecialCells(xlCellTypeLastCell) that dpb mentions, would be implemented as: function last...

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can some one help me with this problem. i want each cell separately from this input image. i am uploading the output images which i wants from this input image. you can check the output images in comments. thanks for your time
Labelise your image, then extract each unique label: sourceimage = imread('index.png'); labelimage = bwlabel(sourceimage); nu...

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global variables used in members of class properties
Global variables are usually indication of bad design. Avoid them as much as possible. In your case, using a global variable to...

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I want to calculate factorial of a large data set containing some NaN in between the data.
I would assume you want an output the same size as the input, in which case: V = [7 8 95 210 85 NaN NaN 52 ...

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Graph how to get every connected nodes from this specific graph
Well, that's a bit silly. Your desired output is more or less the same as your input, just with duplicated information. U = {[1...

más de 7 años hace | 0

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list of varialbes used in a m file
No, matlab does not have a way to get the list of variables in a script. Possibly, you could cobble something together using und...

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How to "partner" 2 matrixes
X = [4 7 1 9; 3 0 6 8] Y = [32 6 4 21; 77 89 0 2] newX = [3 9 4 6; 1 7 8 0] [found, where] = ismember...

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