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how can I read file from a different directory
If you know the full directory name of 'b' use that, i.e chr = fileread( fullfile( 'c:', 'full', 'directory', 'name', 'of', 'b'...

alrededor de 1 mes ago | 1

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Answered
creating a matrix in matlab using a text file
It's the brackets, [], that confuses Matlab. Try A = readmatrix( 'output.txt', 'Whitespace',' []' ); I have R2018b so I can'...

alrededor de 1 mes ago | 1

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Answered
Nested for loop not iterating
I'm just guessing. Replace a_p = agrid(i) b_p=bgrid(j); fhat(i,j)=(a_p(i))-(b_p(j)).*magrange; by fhat(i,j) = ( agrid(i) - ...

alrededor de 1 mes ago | 0

Answered
Previously accessible file is now inaccessible
You need to close the file after reading, add fclose( fileID ) after filedata = textscan(fileID, '%s %s %s %s %s %s %s %s')...

alrededor de 2 meses ago | 0

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Answered
How to convert all the rows containing char values to numbers in a table without for loop?
Replacing str2num by str2double might help. str2num uses eval(), which is slow. str2double takes arrays as input. %% cac =...

alrededor de 2 meses ago | 0

Answered
How to extract a vector from a matrix and save in workspace?
"can I use them in a loop using their names" NO but you can loop over the columns of the matrix for jj = 1 : size( M, 1 ) ...

alrededor de 2 meses ago | 0

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Answered
Why eval seems to be faster than other alternatives in this example?!
Testing is tricky >> Untitled5 Elapsed time is 0.167926 seconds. Elapsed time is 0.007457 seconds. Elapsed time is 0.010043...

alrededor de 2 meses ago | 0

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Answered
how do I substitute all negative values in a vector with a random number between 0 and 2
One way >> Y = randi( [-4,4], 1,12 ); % sample vector >> isneg = Y < 0; >> Y( isneg ) = 2*rand( 1, sum(isneg) ) Y = Co...

alrededor de 2 meses ago | 0

Answered
Alternative to using global for a very large array
"unjustified waste of memory" Matlab is smarter than that, see Avoid Unnecessary Copies of Data. If LUT is look-up-table a...

alrededor de 2 meses ago | 0

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Answered
Integer check
function isf = isflint( m ) % floating double only % % http://www.mathworks.com/company/newsletters/news_notes/pd...

alrededor de 2 meses ago | 0

Answered
Is vaderSentimentScores available in R2019a
No, vaderSentimentScores was Introduced in R2019b. See bottom of the page.

alrededor de 2 meses ago | 0

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Answered
Regexp lookbehind and lineanchors
"My intent is to match 'c' that is preceded by the beginning of a line and zero or more white character." In the character arra...

alrededor de 2 meses ago | 0

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Answered
How to use a percentage number time with a matrix
matrix * (100-10)/100

alrededor de 2 meses ago | 0

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Answered
Matrix Dimensions Must Agree
Is this a copy&paste error? W=imread('copyright1.png'); I=imresize(I,[300 300]); Replacing the line by W=imread('copyright1....

alrededor de 2 meses ago | 0

Answered
Opening R2018b .m files in R2019b
Most likely the reason is that your search path of the R2018b installation is not carried over to the R2019b installation. See S...

alrededor de 2 meses ago | 0

Answered
selecting rows from C with associated values in D, while using A and B values as references to produce E and F matrices
The script %% ixe = [1,4,7]; E = cat( 2, D(ixe), C(ixe,:) ); ixf = setdiff( [1:7], ixe ); F = cat( 2, D(ixf), C(ixf,:) ); ...

alrededor de 2 meses ago | 0

Answered
Append rows to .mat file
See save(filename,variables,'-append') matfile Access and change variables directly in MAT-files, without loading into ...

alrededor de 2 meses ago | 0

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How to import textdata & data from Excel spreadsheet into Struct, using for loop?
What is the size of SBOB ? The for-loop % % Let this be for BOB % for i = [12:14,44:60,71:82] % filename1{i} = sprintf('...

alrededor de 2 meses ago | 0

Answered
Method to GREEDILY select an optional text using regular expressions?
Try %% nfolders = { 'UD_epoch' 'UD_Epoch' 'epoch' 'Epoch' 'U...

alrededor de 2 meses ago | 1

Answered
Calculating storage required to store any certain array(nxn) in the .Mat file ?
Try whos -file matlab.mat See whos, List variables in workspace, with sizes and types

alrededor de 2 meses ago | 0

Answered
Assigning letters to numbers
"assign letters to numbers but in reverse (A = 26, B=25, etc)" Why not start by making a function that takes letters and return...

2 meses ago | 0

Answered
Variable highlighting isn't working
I guess the problem is with the meaning of "Variables with shared scope". See Check Variable Scope in Editor The gui you refer ...

2 meses ago | 1

Answered
Where should we install third-party toolboxes under Windows?
That depends Are you connected to a local network? Do you have a your own drive on a local server? Are the local workstation...

2 meses ago | 1

Answered
Call function by path or namespace?
That's a good question. These two Matlab blogs Simple Namespaces and Brilliant Function Handles A conversation about managing ...

2 meses ago | 0

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Answered
What frustrates you about MATLAB?
Background While experimenting with a function, which I had downloaded from FEX, I encountered the error No such file or dire...

3 meses ago | 0

Answered
What's the best way to open and read a .out file in MATLAB?
If the file contains columns of data, you may want to try the interactive tool Import Data Notice that this tool can generat...

3 meses ago | 0

Answered
Is there a way to continue operation during input()?
Something like %% a script named cssm.m while true user_input = waitinput( 'prompt: ', 5, 's' ); if isnan( user_inp...

3 meses ago | 0

Answered
how to re-assign variable within for loop
A long shot. Replace table=[data1;data2] by if i == 0 table = data1; end table = [table;data2]; %#ok<AGROW> data1 = ...

3 meses ago | 0

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Answered
How to use textscan on a cell array without a loop?
Am I on the right track? Run %% mystruct.out = { '%ACCDA,50,123.99,W,07512.001,E,2,11,2.2,1002.2,Z,,,,*22' ...

3 meses ago | 1

Answered
How to replace values above a given percentile by nans
Ignore the NaNs explicitely when calculating the percentile. Try %% % Table with nan t = array2table(vertcat(horzcat([1:1000...

3 meses ago | 0

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