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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 前 | 1

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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 前 | 0

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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 前 | 0

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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 前 | 2

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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 前 | 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 前 | 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 前 | 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 前 | 0

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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 前 | 4

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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 前 | 0

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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 前 | 4

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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 前 | 1

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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 前 | 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 前 | 1

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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 前 | 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 前 | 0

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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 前 | 0

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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 前 | 0

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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 前 | 1

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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 前 | 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 前 | 0

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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 前 | 0

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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 前 | 1

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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 前 | 5

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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 前 | 1

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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 前 | 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 前 | 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 前 | 0

提问

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 前 | 1 个回答 | 3

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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...

10 years 前 | 0

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