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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 ;

8年以上前 | 0

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[DISCONTINUED] 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...

8年以上前 | 2

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

8年以上前 | 0

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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...

8年以上前 | 3

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i'm getting vertcat and horizon error in a=[z A z] ..i dont know why?? pls tell me how to resolve
I'm not sure what you want to achieve with this, but I'd say that z=zeros(size(A,1),1); would at least make dimensions m...

8年以上前 | 0

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Extract rectangular data from a non-rectangular file with header and convert to a structure of column vectors where field names are the second row of the rectangular data
The problem is that your file has discrepancies. If you look at the first row of data, it is missing an |e| before the |+04| in ...

8年以上前 | 1

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How do I sort filenames containing text and numbers in numerical order in MATLAB?
If, for any reason, you cannot install this function, you can sort your filenames as follows: [~, reindex] = sort( str2doubl...

8年以上前 | 12

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putting several matrices as one
A = randi( 10, 3, 2 ) B = randi( 10, 3, 5 ) C = [A, B]

8年以上前 | 2

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what would be the command to save or open a particular excel data.xls with the designation in a particular drive or folder?
Here is an example. Make sure that the destination folder exists already. If not or if you have to create destination folders dy...

8年以上前 | 1

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finding consecutive NaN in matrix
>> x = [1,2,3,4,NaN,NaN,NaN,7,8,9] ; >> strfind( isnan(x), true(1,3) ) ans = 5 if you just need a "flag found", do...

8年以上前 | 1

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How do i remove the letter a user inputs from a word?
Simply: function [newStr, num] = removeLetter( str, letter ) newStr = regexprep( str, letter, '', 'ignorecase' ) ; ...

8年以上前 | 1

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can i used cellfun with a function which has more than one input?
Yes, use an anonymous function (or define a function inline |=>| name your anonymous function) to wrap the call to |chart_fun...

8年以上前 | 9

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ARRANGING TEXT FILE?
Here is an example, and then we can tailor the solution to your needs from there: content = fileread( 'TEST.txt' ) ; con...

8年以上前 | 0

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is subset S a subspace of R3?
Now that you have probably finished your exercise, here is |S| with the origin displayed as a red dot: <</matlabcentral/answe...

8年以上前 | 1

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shift array to flat
plot( unnamed, 'b' ) ; hold on ; grid on ; x = (1 : length(unnamed)).' - 1 ; slope = (unnamed(end) - unnamed(1)) / (le...

8年以上前 | 0

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how should I copy the selected files to another folder whose name contains 'mytext'
Use copyfile( fname, dest ) ; % or movefile( fname, dest ) ; where |dest| can be defined as dest = fullfile( 'Dest...

8年以上前 | 1

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How can i find this minima?
While it is not a very robust method, these points are the last points of the curve before the derivative becomes very negative....

8年以上前 | 1

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How to write a semifactorial function that iterates up to the input?
This is a good start as you are trying, as a first step, to operate a bit how you would proceed by hand, element by element in a...

8年以上前 | 1

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Error when using isempty in a while loop
This thread should answer you question about what your variable |a| is and how that works: <https://www.mathworks.com/matlab...

8年以上前 | 0

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Finding Max difference between column vectors
If it is in absolute value: [M, I] = max( abs( A(:,5) - A(:,6) )) and otherwise remove the call to ABS. PS: if you wa...

8年以上前 | 3

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reject input if it is a string
Here is what I think you don't understand: INPUT evaluates what the user types unless called with a second |'s'| argument (in wh...

8年以上前 | 1

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How can I include leading zeros in a number?
Store/read the user input as a string. Or, if you want to bring some flexibility, allow users to enter integers without lead...

8年以上前 | 16

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Global variables - is there something better?
Look at my answer there if you want to try using a handle class: <https://www.mathworks.com/matlabcentral/answers/359410-is-it-p...

8年以上前 | 0

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How to simplify this code without having multilevel indexing error???
Here is one way. I build a simple test data set with 4 structs, each |ji| field contains 3 cells, and each cell contains a 2x2 n...

8年以上前 | 1

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Storing neighboring coordinates within a sphere from a 3D domain.
Use PDIST2 and get points within a distance smaller (or equal) to the center (node) than the radius. *EDIT :* here is a quick...

8年以上前 | 1

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Is it possible to avoid copy-on-write behavior in functions yet?
I agree with most of what is said in the comments/answers. Yet, if you really needed to avoid copies _for good reasons_ in a con...

8年以上前 | 5

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How to load large number of files and perform looping through each file?
You can use the output of DIR to produce a struct array of file names/folders and iterate through files: D = dir( '*.txt' ) ...

8年以上前 | 0

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How can I select multiple columns in a table using variable names and wildcards?
I am not using tables, so you should probably wait for a better answer, but here is one way that I could see. Say we have the ta...

8年以上前 | 2

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How to read text files form sub-sub folders
Look at the *EDIT 4:09pm* block in the thread: <https://www.mathworks.com/matlabcentral/answers/355855-how-to-read-text-files...

8年以上前 | 1

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How to find the number of different strings in a cell array?
Use uc = unique(c) ; to get a cell array of unique strings, and its length is their count. If you need a stat of repet...

8年以上前 | 1

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