Answered
BSXFUN Non-singleton dimensions of the two input arrays must match each other
"That should be multiplied by the first row of SV:" I am guessing that you want to repeat SV so that it has as many rows as NED...

3 years ago | 1

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Answered
Loading file and storing variable name as double in .mlx file
To write robust code you should always LOAD into an output variable. Doing so also makes your task easier: C = struct2cell(load...

3 years ago | 0

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Answered
Transform double to char with one or two decimal places
You could use another format, e.g.: fprintf('%.3g\n',[3.15,3.7])

3 years ago | 1

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Argument validation for cell arrays?
"that the argument must be a cell array of three-vectors." You can easily write your own argument validation function: https:/...

3 years ago | 1

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Answered
extract all rows of a matrix except 'r' (vector) rows
The most efficient approach: matrix = [54; 55; 56; 57; 58; 59; 60; 61; 62; 63; 64; 65]; r = [1; 2; 3; 4; 9]; matrix_out = mat...

3 years ago | 0

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Answered
Averaging a curve with itself
S = load('test.mat'); Xraw = S.cx; Yraw = S.c; [Xmin,Imin] = min(Xraw); [Xmax,Imax] = max(Xraw); I1 = Imin:Imax; I2 = [I...

3 years ago | 0

Answered
Operation with logical data. Which is better?
n = 5; a = [1,9,0,2,3]; b = a<n & a

3 years ago | 0

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Answered
Can I create cells inside cells in for loop?
Brute force naive approach: P = perms(1:9) C = {1:3,4:6,7:9}; B = true; for k = 1:numel(C) V = C{k}; [X,~] = find(...

3 years ago | 0

Answered
Writing functions f(x,y)
fh1 = @(x,y) 4*(x-1).^2 + 3*(y-2).^2 + 2*(x-2).^2.*(y-3).^2; fh2 = @(v) fh1(v(1),v(2)); % function with one input sol = fminse...

3 years ago | 2

Answered
I would like to merge two different column in one as datetime
% Fake data: A = ones(5,1) B = {'0:00';'0:05';'0:10';'0:15';'0:20'} % Convert to DURATION: M = str2double(split(B,':')); D ...

3 years ago | 0

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How to solve error "access denied" when using mkdir?
Explanation: The basic problem is that you are calling MKDIR using command syntax (not function syntax), but are expecting to p...

3 years ago | 0

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Answered
Faster indexing from Matfiles with similar names
"What I meant when I said I had 5 matfiles called m1 to m5 is that m1 - m5 were matfile-type variables obtained by calling the m...

3 years ago | 0

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Answered
Common Elements in Two 2D Arrays
A = [1,2,3,4,5,6; 3,1,2,4,5,7] B = [1,1,3,5,6,7; 3,1,2,4,5,7] Method one: ALL and indexing: X = all(A==B,1); C = A(:,X) Met...

3 years ago | 1

Answered
In what situations do we need to use the `empty` method? What benefits does the `empty` method provide?
"In what situations do we need to use the `empty` method?" Whenever you want to create an empty array of a certain class. Certa...

3 years ago | 1

Answered
Reading file names from a certain directory into a cell array to compare it with a different cell array
"I know how to do the comparisson just not how to get the filesnames from the directory" Use DIR: https://www.mathworks.com/he...

3 years ago | 1

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Answered
How to identify blocks in a diagonal block matrix?
This is not very pretty, but it gets the job done. Note for simplicity it only handles square matrices and assumes square, non-o...

3 years ago | 1

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Answered
Table Multiplication error: Both tables must have the same variables
One simple solution is to use curly braces to access table content (not parentheses which return another table): SAI{:,1} .*SAI...

3 years ago | 1

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Answered
error while converting to string
"However, I want the value of m to remain 08." Numeric data classes do not store formatting information e.g. how many leading z...

3 years ago | 0

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Answered
Why is the If Statement Not Working?
This code if i 1 | 4 is exactly equivalent to writing if i 1 | 4 where the second line is calculated and the result imm...

3 years ago | 0

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Answered
How can I create an array(not a cell array) for every iteration of a for loop
Fake data: V = rand(1,99); W = [3,9;13,17;64,91]; % [start,end] Approach one: ARRAYFUN and CELLFUN: F = @(b,e) V(b:e); C = ...

3 years ago | 0

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Answered
Finding name of single frames when reading a Tiff stack file
This is what GIMP found hidden amongst the EXIF data: It looks like some tool has added some non-standard EXIF meta-data. Not...

3 years ago | 0

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Answered
How to convert hours, minutes, seconds to seconds?
The approach for MATLAB >=R2014b is to use the DURATION class, e.g.: C = {'14:54:25'; '14:54:25'; '14:54:25'; '14:54:26'; '14:5...

3 years ago | 1

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error using the join function
"What went wrong?" You need to provide multiple key names as one input argument, not as two separate input arguments. This mean...

3 years ago | 0

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Create a matrix of HEX number from a file of HEX number separated by a space
S = readmatrix('test.txt', 'OutputType','string')

3 years ago | 2

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how add "$" and "' ' " in array string
format long G V = [0;-23;123.456;-0.78;9;1234567.89;-987654321;7;-54321] S = compose("$ %.2f",V(:)); S = regexprep(S,"(\d{1,3...

3 years ago | 1

Answered
How to make Matlab give different answers for different text inputs of different lengths
"What am I doing wrong?" You are using EQ (i.e. ==) for character arrays, which performs a character-by-character comparison (e...

3 years ago | 0

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Answered
How to calculate the length of a curve with known coordinates (x,y)?
The simplest approach is to download John D'Errico's excellent ARCLENGTH function: https://www.mathworks.com/matlabcentral/file...

3 years ago | 0

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fplot glitch when plotting a square function
"Can anyone comment on what is causing this behavior?" The main cause is missing from your list: mathematics. It essentially co...

3 years ago | 3

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Answered
sorting alphabetically with sortrows: underscore handled differently than in windows
I had a requirement to sort some non-English text into alphabetic order (or even better, alphanumeric order). I first looked at ...

3 years ago | 1

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table stats - summary(TT) - like pythons pandas .describe()
Because SUMMARY provides different output values depending on the input data type, in general you would end up with a large tabl...

3 years ago | 0

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