calling a function in another function by changing only few input arguments
If you are in another function where variables with the same names are defined (e.g. because they are arguments of the function)...

1年以上 前 | 0

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how to convert collumn matrix (nxn) into another matrix of (mxn) type .
Difficult to answer with that little detail.. Maybe: M = reshape( v, n, n ) ; or M = reshape( v, n, [] ) ; with a...

1年以上 前 | 0

Accessing the string elements
Here is one way, as string arrays are "iterable". continents = ["America", "Europe"] ; countries.America = ["USA", "Bra...

1年以上 前 | 1

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Export Data from a Structure which contains double timeseries data to Excel ... Example Data Provided...
Here is one way if you want to create two worksheets "Left" and "Right" in the same workbook, with 21 column per sheet for time ...

1年以上 前 | 2

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Extracting multiple envelopes from a signal
Quick cheap trick gets 2/3. Was going to bed, no time for more but that could be a starting point. function main load...

1年以上 前 | 2

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Sort & Index matrix for highest values in row
Here is another way: >> A = rand(5, 5) A = 0.9337 0.1518 0.6164 0.3074 0.4584 0.9017 0.1290 0....

1年以上 前 | 1

Best way to seperate a very large array of numbers into different variables based on a value tat is given in the first column?
Here is an example: we build a fake data set: >> data = [sort(randi(3,10,1)), rand(10,5)] data = 1.0000 0.9727 ...

1年以上 前 | 1

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find all the possible pairs with postive elements from a given matrix
It looks like you want triplets, or I don't understand the question: >> posUnique = unique( A(A > 0) ) posUnique = ...

1年以上 前 | 1

indexing entry of a matrix result
[nRows, nCols] = size( A ) ; if you don't need |nRows|: [~, nCols] = size( A ) ;

1年以上 前 | 1

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Figure size for multiple subplots is not even
At the end AX.Position(1:2) = [0.005, 0.02] ; % Move legend down and center a bit. ax2.Position(4) = ax1.Position(4...

1年以上 前 | 1

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concatenated matrix - factoring out a matrix coefficient
D = [A, B]./[C, C] which isn't more convenient than the initial expression! Depending the context, you can REPELEM or REPM...

1年以上 前 | 1

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How do I properly append to an array within a loop?
You shouldn't name your variable |Ai| if |i| is meant to be the index. Assuming that |A| is already defined and that, at loop in...

1年以上 前 | 3

How to make a permanent change to a matrix using sortrows?
P = sortrows(P,7) ; Most of the time functions don't operate "externally", so SORTROWS doesn't alter your array |P| define...

1年以上 前 | 1

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How to make this "for" loop work?
s = [1.2535 1.2535 1.2535] c = [0.0 0.5 1.0] Formula = zeros( numel(s), numel(c) ) ; for i=1:3 for j=1:3 ...

1年以上 前 | 1

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Wanted: Examples on how to use "Dynamic Regular Expressions" to debug regular expressions
Regular expressions may not be that appropriate in this context; I used them in the past for doing exactly this, but it was too ...

1年以上 前 | 1

textscan failing to read data in text file
Here is one way. We pre-process the content before parsing, adding 'N' where the first letter is missing. Then we count the numb...

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How to unnest nested cell arrays??
It is a very good attempt. Here is an example that is almost what you did: >> A = {{5,6}; {7}; {8,9,3}} A = 3×1 cell ar...

1年以上 前 | 1

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basic math operations with numbers stored in cell arrays ?
You probably have strings in the table and not numbers. If so, you should use STR2DOUBLE instead of CELL2MAT. It can operate on ...

1年以上 前 | 0

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How to cut duplicate rows from a matrix
A_uniqueRows = unique( A, 'rows' ) ; or A_uniqueRows = unique( A, 'rows', 'stable' ) ; if you don't want the outpu...

1年以上 前 | 0

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Get data points from one line
That was a good attempt, but for this you should use tokens: buffer = fileread( 'SnSe_100K_17.out' ) ; pattern = ':\s+(\S...

1年以上 前 | 0

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After reading excel data into matlab the data is not complete
Look at the possible output arguments of XLSREAD. The function splits numeric and text data, and also outputs raw data: [num...

1年以上 前 | 0

Search an entire text file for a word
content = fileread( 'MyTextFile.txt' ) ; and then you can STRFIND or REGEXP or anything else on |content|, which is a char...

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Read specific column from .txt file with unkown format
content = fileread( 'Info.txt' ) ; nCols = numel( strsplit( regexp( content, '[^\r\n]+', 'match', 'once' ), ' ')) ; dat...

1年以上 前 | 1

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How can I format fscanf to read strings of different lengths, some with spaces in them?
Wild guess: cometNames = strtrim( strsplit( fileread( 'MyFile.txt' ), ',' )) ; will work, provided that you adapt the del...

1年以上 前 | 0

How to convert a string to a function?
doc str2func but unless you know what you are doing (or you are just playing to see how that works), approaches that rely ...

1年以上 前 | 2

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Identifying sequences in a Matrix
You can find sequences using STRFIND, even when you are dealing with numbers: >> seq_str = 'ACEBAECE' ; >> strfind( seq_st...

1年以上 前 | 1

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MATLAB Answers Wish-list #4 (and bug reports)
For people who don't check the _"Allow users to contact me securely"_ option in their profile, there could/ *should* be a button...

1年以上 前 | 2

how to obtain minimal surface of given coordinates?
Minimal in what sense? fill3( [0,50,50,0], [0,0,50,50], [50,10,50,10], 'y' ) ; grid on ;

1年以上 前 | 0

How can I sort my data by within a sorting
[xyz_sorted, id] = sortrows( [x(:),y(:),z(:)] ) ;

1年以上 前 | 0

How can I read a GeoJSON format file?
See this example: <https://www.mathworks.com/matlabcentral/fileexchange/49813-matlab%C2%AE-for-analyzing-and-visualizing-geos...

1年以上 前 | 1