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Problems when using textscan to read csv files
Hi! Even if the question is already answered, my suggestion is % read in file fid = fopen('myfile.csv'); FC = text...

10年以上前 | 0

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Slow debugging for long scripts
Hi! You can try to disable the code analyzing feature under "File -> Preferences -> Code Analyzer". Writing should not be del...

10年以上前 | 0

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To eliminate the lines begin with "%"
Hi! Read in your file: % read in a file fid = fopen(FileName); FC = textscan(fid, '%s', 'delimiter', '\n'); fcl...

10年以上前 | 1

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how can I print out all the variables of my code?
Hi! Just look at your "Workspace", it can be found in the menu bar. Or type "who" in command window.

10年以上前 | 1

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How to replace a for loop with something faster
Hi! If you don't need the results of every loop, you can write: p1 = phi.*r; p2 = phi.*(lam_+g_)-.5*g_^2; p3 = .5....

10年以上前 | 0

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How can I separate complex data from a .txt file?
Hi! It seems all your 6 fields in a row are separated with ",", right? The easiest is to read in the whole file and process e...

10年以上前 | 0

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Problem using regexp to extract certain lines
Hi! I would suggest another approach. It is (in my opinion) easier to debug, because you can track your steps easily. % ...

10年以上前 | 0

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How many workspaces are present in matlab??
Hi! Each function has its own workspace. If you write a function you will have a separate workspace to work in, without the v...

10年以上前 | 1

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How to use/skip multiple strings in a legend
Hi! Did you read this page? <http://www.mathworks.com/help/matlab/creating_plots/controlling-legends.html Controlling Legends...

10年以上前 | 0

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Matlab (R2012b) on windows 7 closing itself while running scripts
Hi! In your scripts do you use "exit"? This terminates matlab. If you only want to _exit_ a matlab script or function you nee...

10年以上前 | 0

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Regular expressions, words in a pattern
Hi! "\w" does not match spaces!

10年以上前 | 0

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How can I generate a matrix?
Hi! Loop over your a/b vectors and increase the specified matrix element: M = zeros(max(a), max(b)); for n = 1:le...

10年以上前 | 1

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simulation for an array
Hi! As far as I understand you want to create a movie? You can plot to a figure, capture the figure and play the movie like t...

10年以上前 | 0

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How to read a txt file containing letters and number
Hi! You can read in with textscan as strings and convert afterwards: % read file fid = fopen('plante1_no_head.txt'); ...

10年以上前 | 0

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How to prevent function output being overwritten in for loop?
Hi! Use arrays to save the results: % allocate arrays for results Energyin = zeros(JN-1, 1); Energyout= zeros(JN-1...

10年以上前 | 0

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Failure in look-up table / failure in my matlab
Hi! The help uses sfix(8) instead of ufix(8) and another scaling: <http://www.mathworks.com/help/simulink/slref/fixpt_interp1...

10年以上前 | 0

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How can i use threshold to convert a gray-scaled image into binary image ?
Hi! If you load an image into matlab, you get a matrix A (for example) of size (XxYx3) with X and Y being the number of pixel...

10年以上前 | 2

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Error using * Inner matrix dimensions must agree. HELP
Hi! My guess: You write T1 = mult * cos(kRca); If mult and kRca have the same length and you want to multiply elemen...

10年以上前 | 0

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Finding Indices of Duplicate Values
Hi! You may use "unique". The second output is the index of all unique values, e.g. in column 3. All other indices are duplic...

10年以上前 | 6

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Question about a script
Hi! You may not mix a script with a function in one file! If you want to write a function called "pos_vel", you have to save ...

10年以上前 | 0

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Multiplying a changing amount matrices.
Hi! I'm not sure if I understood correctly. You can concat N matrices into a 3d matrix with dimensions (2x2xN). Basically, yo...

10年以上前 | 1

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How to change a matrix as inserting zeroes both end sides?
Hi! Use diag: <http://www.mathworks.com/help/matlab/ref/diag.html?searchHighlight=diag>

10年以上前 | 0

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How can I plot coordinates with different colours based on the value and family of my variables ?
Hi! X = [2 4 -3 5 6]; Y = [4 9 1 -2 1]; L1 = [1 1 1 1 1]; L2 = [2 1 2 1 2]; L3 = [3 3 3 3 1]; L4 = [10 0...

10年以上前 | 0

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How can I generate a sample of 1-D random numbers following Gaussian distribution
Hi! It seems you already found your solution on file exchange. Why don't you use it? Your input function will be m=0;...

10年以上前 | 0

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comparing matrix elements and performing operation if equal
Hi! % get indices of unique values [~, ~, c] = unique(A(:, 1)); % loop over all unique values for n = 1:max...

10年以上前 | 0

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How to order values within a cell array more efficiently??
Hi! orderedratings = cellfun(@(x) ratings{3,x}, ... cellfun(@(x) strcmp(x,ratings(2,:)), ratings(1,:), 'UniformOut...

10年以上前 | 1

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Function/method to truncate the fractional part of a number in Matlab
Hi! To get the fractional part you may use fractionalpart = x - floor(x) Try it with "x=pi" for example. And try it ...

10年以上前 | 0

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Printing specific lines to a text file
Hi! If you read line by line with textscan, you should use '\n' as delimiter. fid = fopen(FileName, 'r'); FC = textsc...

10年以上前 | 0

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Problem of generating 4 sub-images
Hi! What exactly is going wrong?

10年以上前 | 0

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How to read large data file in Matlab?
Hi! Is it a binary file or a normal text file? For text files you may use "fopen" and "fgetl" to read line by line. If you kn...

10年以上前 | 0

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