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Unzip to a cell array, get the csv filles
"I got Error using readtable Unable to find or open '2025-01-28/'. Check the path and filename or file permissions." You get an...
3 days ago | 0
| accepted
How can I create multiple function handles in a for loop?
"I would like to know the area under the spline... But I guess this is not the most appropiate approach. Any suggestions?" Use ...
3 days ago | 0
| accepted
How can I use Interp1 here instead of ismembertol?
Fiddling around with indices and ISMEMBERTOL are red-herrings and misdirections from your actual task. Essentially what you are ...
6 days ago | 0
Problem graphing the % error between a real function and its linearization using contourf in MATLAB
"I think the problem is the way I'm calculating the %Error between those two functions..." That is the problem, because you are...
6 days ago | 1
| accepted
How to use "image" function to view images (JP2, PNG, BMP, etc) with alpha channel?
The accepted answer is incorrect. "When I do "a = imread(filename)" and "image(a)", it gives the following errors..." "The var...
7 days ago | 2
How to iterate through a cell array to mean each ith column from each matrix within the cell array?
Fake data (I removed the superfluous outer loop): for k = 1:5 C{1,k} = rand(500,26); C{2,k} = rand(500,24); C{3,...
7 days ago | 1
Not recognising named input argument
The name "is_fbk" is not defined as a named argument. Because by definition named arguments must come last AND all inputs betwe...
7 days ago | 0
| accepted
Reconstruct a compressed vector based on another one with equal space entities
VC = [1,20,-4,23,6,3,7,-23] PC = [2000,2250,2500,2750,3750,4000,4500,4750] PV = PC(1):250:PC(end) VV = nan(1,numel(PV)); VV(...
8 days ago | 0
| accepted
determine if a datetime value is on a different day
"Functions like between and caldiff seem to return a duration" BETWEEN and CALDIFF will not help you. Either use DATESHIFT or t...
10 days ago | 0
| accepted
Submitted
Number to Scientific Prefix
Convert a numeric value to SI-prefixed text (aka engineering / metric prefix). Bonus: binary prefixes!
12 days ago | 10 downloads |
Submitted
Scientific Prefix to Number
Convert SI-prefixed text (aka engineering / metric prefix) into numeric values. Bonus: binary prefixes!
12 days ago | 2 downloads |
Three dots at the end of a line of code
Perhaps code folding. Code folding is stored as meta-information in PREFDIR, much like breakpoints etc. are. Unfortunately some...
14 days ago | 3
| accepted
reading text fils with data importing
It would be much better if you uploaded a sample data file by clicking the paperclip button. In lieu of that I created my own d...
15 days ago | 0
| accepted
Move to MxN cell array to 1xN cell array
C = load('CellMatrixExample.mat').EmissivityMat F = @(c)vertcat(c{:}); C = cellfun(F,num2cell(C,1),'uni',0)
16 days ago | 0
| accepted
reshape 4-dimension array
https://www.mathworks.com/help/matlab/ref/double.permute.html https://www.mathworks.com/help/matlab/ref/double.reshape.html A ...
20 days ago | 1
| accepted
Can someone explain why the top code works but the bottom one has an error that says "Index exceeds the number of array elements. Index must not exceed 1."
"Can someone explain why the top code works but the bottom one has an error that says "Index exceeds the number of array element...
21 days ago | 0
| accepted
MATLAB Indexing type dependence (bug?)
"what does it matter to the indexing whether it is a single or a double?" Because single precision cannot represent all of thos...
21 days ago | 0
| accepted
Avoid negative sign with compose() when output is zero, e.g. '-0' or '-0.0'
num = -0.04; txt = compose('%.1f', num) txt = regexprep(txt,'^-(0+(\.0+)?)$','$1')
21 days ago | 0
| accepted
Why do my plots overlap instead of showing up side-by-side?
Explanation: TILEDLAYOUT was written assuming one axes in each tile position. When you create a 2nd (or more) axes in a specific...
22 days ago | 0
| accepted
Separate data series based on parameter within the data.
A = [1,12,13,14; 1,21,23,24; 2,32,33,34; 100,42,43,44] [G,ID] = findgroups(A(:,1)); Method one: F = @(x)A(x==A(:,1),:); C = ...
23 days ago | 0
The surface area won't round to one decimal place and I don't know how to get rid of the 'e's.
https://www.mathworks.com/help/matlab/ref/format.html Do not mix up the data stored in memory with how those data are displayed...
25 days ago | 1
LaTeX interpreter with multiple strings or character vectors
Without even reading the XTICKLABELS documentation lets first do some basic reasoning: is a single character vector. XTICKLABEL...
26 days ago | 0
| accepted
Fast reorganization of cell arrays
The timings might be similar for small arrays, but try testing on larger arrays! tic % Initialize target and source arrays tg...
26 days ago | 0
| accepted
Left Justifying a String obtained from the formattedDisplayText() function
You would have to delete all leading space that occurs after any newline characters, e.g.: str = regexprep(str,'^[ \t]+','', 'l...
28 days ago | 0
| accepted
Sort array based on particular rows
format long G M = load('matlab.mat').out X = -fix(2*(0:size(M,1)-1)/11); [~,Y] = sortrows([X(:),M],'descend'); Z = M(Y,:)
29 days ago | 0
| accepted
Extract data using variable names
https://www.mathworks.com/matlabcentral/discussions/tips/849901-tutorial-why-variables-should-not-be-named-dynamically-eval The...
29 days ago | 1
| accepted
Calculations involving indexed variables and creating data tables
Lets first create some fake data (because you did not upload any sample data): T = array2table(rand(7,4),'VariableNames',{'X','...
30 days ago | 0
| accepted
vpa does not work with the desired amount of digits
You need to set the digits first: https://www.mathworks.com/help/symbolic/digits.html The default is 32. "returns an answer w...
30 days ago | 3
Alligning the output using fprintf
I = [0.0039,0.0038,0.2,0.402,0.628,0.837,1.069,1.234,1.436,1.666,1.79,2.05,1.8,1.54,1.42,1.24,1.03,0.8,0.61,0.4,0.18,0,-0.19,-0....
1 month ago | 0
| accepted
xlsread multiple files from multiple folders
S = dir('Y:\Projects\*\*.xls'); W = 'Logic'; for k = 1:numel(S) F = fullfile(S(k).folder,S(k).name); [num,str] = xls...
1 month ago | 0
