Answered
Reading in data with spaces
Here is a quick fix following a different path from what is mentioned in Dpb's thread. Assume that we have |test.txt| with the f...

10 years ago | 1

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Answered
An efficient way of finding sequential points near zero
What you want to achieve is not completely clear to me. Does that help? t = 0 : 0.1 : 20 ; x = sin( t ) + rand( size( t ))...

10 years ago | 0

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Answered
Transfer lines in a text file to a new text file
You can do something along this line: content1 = fileread( 'm21rmmorphU.txt' ) ; content2_rows = strsplit( fileread( 'vir...

10 years ago | 0

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Answered
grouping data by value
x = [1, 8, 2, 3, 3, 7] ; % Dummy example. [~, binId] = histc( x, [0, 4, 10] ) ; % Bin edges: 0 --bin1-- 4 ...

10 years ago | 2

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Answered
Large Cell Array Manipulation?
The loop is probably not the limiting factor. RANGESEARCH will be much slower than the loop, for almost any number of atoms. Try...

10 years ago | 0

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How can I separate hand from forearm after skin segmentation?
This could be a start. This is not as solid/stable as what ImageAnalyst proposes though. In French we would call that "bricolage...

10 years ago | 3

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How do I send a file .txt or .evt between two computers using TCP/IP
I'd say "by email". More seriously, if you need to build a client-server system, look at the following: <http://www.mathworks...

10 years ago | 0

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How can I speed up importing large .d files?
I would do something along the following line: buffer = fileread( 'test.txt' ) ; data = sscanf( buffer(76:end), '%f' ) ...

10 years ago | 0

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Answered
How Can I recognize/detect the Needle/hand in the below images?
ImageAnalyst will certainly provide a fancy solution (like a |bwGetBlobAngle| from his FEX ;-)), but (waiting for him to hit the...

10 years ago | 4

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Answered
Shift rows by different amounts
N = 4 ; A = repmat( 1:N^2, N^2, 1 ) ; % Dummy example. for k = 2 : N A(k:N:N^2,:) = circshift( A(k:N:N^2,:), (k-1) ...

10 years ago | 0

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Answered
Loading Large CSV files
If the file contains numbers that you want to get in a numeric array of doubles in MATLAB ultimately, the array will be around 2...

10 years ago | 4

Answered
Need to remove '~' in column 5 of text file
*UPDATE 5:04pm* % - Read original. content = fileread( 'mwithin21rm.txt' ) ; % - Match and eliminate lines without pat...

10 years ago | 1

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Answered
I'm trying to make a contour map but I keep running into a small issue. Does anyone know what I have to do to either my function file or script file?
Your function doesn't define it's output argument |V|, but another variable |VS|. You should change the double FOR loop for a...

10 years ago | 0

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Repeated string what been increment by 1?
The approach is questionable, but let's say that technically you can do this: for k = 6 : 10 baseName = sprintf( 'A_%d'...

10 years ago | 1

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Answered
How can I import .xlsx files automatically without having many programming concepts?
Look at the following: doc uiputfile doc fullfile doc xlswrite The first will allow you to open a file selection wind...

10 years ago | 0

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nansum for double or single -> why error?
Are you using a version of MATLAB anterior to 2006a? Evaluate |ver| or |version| to check. Or maybe you shadowed the function by...

10 years ago | 0

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Answered
Remove the NaN elements in a matrix
A(any(isnan(A),2),:) = [] ; To understand, evaluate isnan( A ) any( isnan( A ), 2 ) class( any( isnan( A ), 2 )) ...

10 years ago | 0

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Answered
Reading a matrix (or array) from an excel file
Hi, try something along the following line: [filename, filepath] = uigetfile( '*.xls*' ) ; N_C = xlsread( fullfile( filepa...

10 years ago | 0

Answered
How to use spell checker with matlab?
You could try this: <http://www.mathworks.com/matlabcentral/answers/91885-is-there-any-way-to-check-spelling-from-within-matl...

10 years ago | 1

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Answered
vectorial programming instead of for-loops
The first thing to consider is that given the size of matrices that you are dealing with (and the fact that elements are of type...

10 years ago | 0

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How to determine which indices in a row cell array contains the value 1, even when there are null vectors [ ] in the cell array?
find( cellfun( @(x) ~isempty(x) && x==1, C )) ans = 5 6 7 8 9 10

10 years ago | 0

Answered
Counting unique values across the columns of a matrix
*UPDATED* as developed in the comment below y = find( arrayfun( @(c) numel( unique( A(:, c) )), 1:size( A, 2 )) > 3 ) ; ...

10 years ago | 0

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Answered
Can I display two sprintf variables side by side?
I would have the functions output numbers and no strings (which contain line returns), and then build a print function which is ...

10 years ago | 1

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Answered
Count word frequency, please help
What do you mean by "it didn't work"? Did you get an error message? If so, please copy/paste it. If the output was not correct, ...

10 years ago | 5

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Answered
How to load in variable if it is present in a matfile?
An alternate solution is to <http://undocumentedmatlab.com/blog/trapping-warnings-efficiently/ catch the warning> (LOAD doesn't ...

10 years ago | 1

Answered
Help with this code - logical indexing and num2cell -
The line that you mention defines a vector |equ| of logical elements which are true (1) where the condition is true (relational ...

10 years ago | 2

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Use a numeric array as Map value
If I understand well what you are trying to achieve, you can: * Build your own system using a cell array of keys and STRCMP...

10 years ago | 4

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Choosing data from an array using a binary array
_(Formerly a comment)_ What do you want the points that are not flagged by your logical array to be replaced with? *Example:*...

10 years ago | 0

Question

Managing {} indexing in SUBSREF/SUBSASGN overloads.
Dear all,       I am starting a thread for discussing an issue that arises when one wants to ma...

10 years ago | 1 answer | 3

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answer

Answered
Undefined function or variable in ode45
You cannot have all these lines of code in the same file. You must have two M-files, one named |fun.m| which contains functi...

11 years ago | 0

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