Answered
subdivide numbers inside a file .xlsx
Simpler: C = readcell('file.xlsx'); M = str2double(split(C(6:end),', ')) T = array2table(M, 'VariableNames',split(C(5),', '))...

5 months ago | 0

Answered
Your variables are reaching 2GB limit,revert to save -v7.3 This will be slower but avoids matlab not saving the data.
"How should I resolve this?" Specify the version when calling SAVE: save(.. , '-v7.3')

5 months ago | 0

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How to open and modify .dat file
unzip nema.zip fid = fopen('nema.dat','rb'); arr = fread(fid,'int8'); fclose(fid); dim = [364,364,110]; arr = reshape(arr,d...

5 months ago | 0

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Answered
unique across tables within table
U = unique(vertcat(RawFileIndex.Parameters{:}).ID)

5 months ago | 0

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Answered
Finding multiple Matrix in a txt file
"For example (in my own dumb coding brain) I would like matlab to "Search a txt file that has a certain name that the user can s...

5 months ago | 1

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how to make the numbers on the matrix with alternative sign?
n = 5; m = toeplitz([2,1,zeros(1,2*n-2)]) .* -(-1).^gallery('minij',2*n)

6 months ago | 0

Answered
Adding column in cell array before converting to a matrix.
Here are a couple of approaches. First lets create some fake data: C = {randi(9,3,2),randi(9,2,2),randi(9,4,2)} C{:} Method o...

6 months ago | 0

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Answered
readtable struggling to interpret spreadsheet as numbers
"readtable struggling to interpret spreadsheet as numbers" Unfortunately due to that broken CSV format we need to import everyt...

6 months ago | 0

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Answered
How to convert datetime into a number?
txt = '08-Jan-2016 05:40:00' dtn = datetime(txt,'InputFormat','d-MMM-y H:m:s', 'Format','yyyyMMddHHmmss') https://www.mathwork...

6 months ago | 0

Answered
Creation of binary coded image from a matrix
A = [0,2;1,3;7,14] Method one: BLOCKPROC (requires image toolbox, probably not very fast): F = @(s)reshape(dec2bin(s.data,4)-'...

6 months ago | 1

Answered
How to convert numbers to text
v = fix((0:14)./5).' w = char(v+'x')

6 months ago | 0

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Answered
How to search for table column via a string
y = rawTable.(string); % ^ ^ https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-table.html

6 months ago | 1

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Answered
How to use indices of one matrix as entries of another matrix?
Fake data: M1 = reshape(randperm(256)-1,16,16); Y = find(M1==hex2dec('34')); M1([1,Y]) = M1([Y,1]) Convert: C = 1+mod(M1.',...

6 months ago | 0

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Answered
Save in an array lines after the appearance of a text pattern
txt = fileread('File.txt') rgx = 'Cell\s*\(Angstrom\):(\s+\S+){9}'; tkn = regexp(txt,rgx,'once','tokens'); mat = sscanf(tkn{1...

6 months ago | 0

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Reading unformat text file with strings and numbers
In lieu of a sample data file provided by the OP I created my own... Lets try importing it using READTABLE and a few options: ...

6 months ago | 1

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Answered
How can I iterate through an array using a for loop?
Given an array of paths: C = {'C:\Users\me\Documents\My Info','C:\Users\me\Documents\My data'}; F = @(p)dir(fullfile(p,'*.xlsx...

6 months ago | 0

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Store a script as a function
If you want to call RANDOMSTART from e.g. another function or from the command line then it must be a function. What you have is...

6 months ago | 0

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Answered
Collect information of a file with the same kind of text pattern
txt = fileread('file.txt'); rgx = 'Cr(\d+)\s*Cr(\d+)\s*\(\s*(\S+),\s*(\S+),\s*(\S+)\).+@.*\n.+\n.+\n[^:]*:\s*\(\s*(\S+)\s+(\S+)...

6 months ago | 2

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Answered
I am getting "Conversion to logical from table is not possible." error, how do you solve it?
"How can I solve this problem?" Use the correct indexing: c0 = Table(ind_coeff,2); % what you are doing: return another table ...

6 months ago | 0

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Answered
Importing files in bulk chnages table columns to NaNs
Avoid the inner loop: T = load('T.mat').T if width(T)>=37 V = str2double(string(T{:,37})); V(isnan(V)) = 0; T =...

6 months ago | 0

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Answered
order using first column in array cell
The basic problem is that you are storing scalar strings in a cell array. This should be avoided: "If you create variables that ...

6 months ago | 0

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Answered
Extract two floating point numbers from a string
T = '23.047°S 67.782°W 9.876°N 5.432°E' ; V = sscanf(regexprep(T,{'(\S+)°[SW]','(\S+)°[NE]'},{'-$1','+$1'}),'%f')

6 months ago | 1

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Parse csv with complex numbers written by Python numpy
Forget about fiddling about with strings. Define the parentheses as delimiters and import as numeric: format short G M = readm...

6 months ago | 0

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Answered
Taking outer product of two matrices
"However, the ⊗ operator between ∇ and u isn't the simple multiplication operator *." The Wikipedia page you linked to states "...

6 months ago | 0

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Answered
Not enough input arguments
"I am a little perplexed by this warning from matlab: "Not enough input arguments" for my following code" Lets take a look at h...

6 months ago | 0

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Answered
why does it change the number when using VPA?
"why does it change the number when using VPA?" It doesn't. That "loss of digits" is completely unrelated to VPA. The change o...

6 months ago | 2

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Answered
How can I use the data of a set of matrices labelled in order
"Thank you also for pointing about about dynamic variables, but as a beginner I am lacking options." You decided to use LOAD, s...

6 months ago | 0

Answered
i have a csv with data separated with commas and columns also are separated with commas
T = fileread('piloto.csv') T = regexprep(T,',(\d+e)','\.$1') % you could also save this to a proper CSV file C = textscan(T,''...

7 months ago | 0

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Answered
extract multiple slices of difference sizes from a vector
The MATLAB approach: A = [1 4 6 5 4 8 7 8 6 4]; N = [2 3 5]; C = mat2cell(A,1,N); Checking: C{:}

7 months ago | 0

Answered
How to read lines from cell
S = readlines('T04102.txt'); X = find(startsWith(S,'PID 01')); F = @(x) regexp(S(x:x+3),'[01]{4}\s+[01]{4}','once','match'); ...

7 months ago | 0

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