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How do I get both the minimum of a 2D matrix and it's indices?
minMatrix = min(matrix(:)); [row,col] = find(matrix==minMatrix);

約13年前 | 18

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How to open .dat file
Use the functional form of load, i.e. load(f)

約13年前 | 0

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How can shape a matrix with predefined vectors?
N = [N1; N2; N3];

約13年前 | 1

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XTick Visibility off with XTickLabel showing
set(axes2, 'TickLength', [0 0]);

約13年前 | 1

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How to avoid for loops when generating index arrays?
It's kind of hack-y, but it gives the same output as your original posting: n=4; l = cell2mat(arrayfun(@(x) x*ones...

約13年前 | 0

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How can I plot 3D TENT with MATLAB?
For part (a), I would look up the documentation for the following two commands: linspace %to create your x and y domain ve...

約13年前 | 0

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Loading ascii data file with headers
This should do it fid = fopen('path/to/your/file.txt', 'rt'); Data = textscan(fid, '%d %f %f', 'headerLines', 3, 'Collec...

約13年前 | 0

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Save While-loop to vector
Make your variables into vectors, by indexing through them: index = 1; while Velocity2(index) >=-20 Velocity2(...

約13年前 | 2

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Extract Information Between M-Files
It depends how the m-files are defined. If they are scripts (that is, they are not defined by the 'function' keyword at the top)...

約13年前 | 0

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Pixel Selection within a GUI
Easiest (although not particularly clean) way might be to use ginput(), and then round the return coordinates to select the pixe...

約13年前 | 0

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How can I clear a graph before drawing a new one?
To clear the existing plot first: cla(gca); ezplot(...); To draw a plot in a new window: figure(); ezplot(.......

約13年前 | 0

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compare two datasets of unequal length and create a textfile
To read in the text files: doc dlmread To compare which dates occur in both files: doc intersect (The second o...

約13年前 | 1

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Need help plotting 100 Strings onto grid (FOR loop not working)!
I would use a text() function rather than a textbox annotation, since the former is a lot lighter than the latter. You ca...

約13年前 | 0

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I can't make A<B, it gives me 'lt' error
Hmmm...I don't see any 'sym' variables here. What is the class() of J and P?

約13年前 | 0

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i have written this code i want to solve this heat equation for n vary from 0 to n(any value) for each value of x at each case from t= 0 to 10
Do you want to evaluate this numerically? Such that you have a value for T at each x and t. If so, your approach of using symsu...

約13年前 | 0

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Adding points onto a 3D figure in a GUI
Turn 'hold on', and then call plot3() to plot the points.

約13年前 | 0

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how can I read eeg signal manually ?
A quick Google search indicated this: <http://sccn.ucsd.edu/eeglab/> Apparently, this eeglab toolbox allows for import/manip...

約13年前 | 0

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How can I create a plot of a 3D mesh given node coordinates and element connectivity from an input file?
Hi Kirsten, First of all, can you clarify exactly what you are trying to plot? For the element connectivity you can define it...

約13年前 | 0

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Identify and Obtain information from data files
To read the numeric values, I would use textscan() with the 'CommentStyle' option, such as: str = fileread('/your/file/name...

約13年前 | 1

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finding the string from the text file
To get you started, look at the documentation for the following functions: doc strfind %to find whether a string is pres...

約13年前 | 1

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Saving a figure with multiple graphs
saveas() takes a figure handle. The output of a plot() command is a line handle (or a 2x1 vector of line handles, as you have it...

約13年前 | 0

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To change Current Folder to the folder of .m File
cd(which(fileparts('/path/to/your/file.m')))

約13年前 | 0

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Trying to make loop that stops when xnew is closer to xlast by .001
If you could format your code using the 'Code' button above, that would help us read it. That said, I think the problem is in y...

約13年前 | 0

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Calculating (optimizing?) center of a sphere from surface points?
Here's one function that was developed to do this: <http://www.mathworks.com/matlabcentral/fileexchange/34129-sphere-fit-leas...

約13年前 | 0

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Adding up words in matrices on Matlab
Another approach might be to use ismember(). For example: dictionary = {'hello', 'my', 'name', 'is', 'kevin', 'susan'}; %w...

約13年前 | 0

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Will someone help me with a script I am writing to create a video from multiple pictures
The major issue that I see if that you are calling image() with a size, rather than the actual data (rgb). Try this: vidO...

約13年前 | 0

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convert an array of numbers into letters; 1 =a, 2 =b, 3 = c etc.
Alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' numbers = [3,6,12,1,1,3] letters = Alphabet(numbers) Or using the ASCII...

約13年前 | 5

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how can i read or open a .img file using Matlab?
I've never used it, but a quick search of the Help gave: doc hdrread

約13年前 | 0

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How to inverse all vectors in a struct
Structure= structfun(@fliplr, Structure, 'UniformOutput', false)

約13年前 | 1

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Split a matrix into a sum of other matrices
How is your matrix currently defined? Are you really combining both numeric elements (e.g. doubles) and symbolic elements (creat...

約13年前 | 0