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Argument Question?
I think this is what they meant - In the function file: function outputVar = myfunction(inputVar) % write the rest of t...

nästan 13 år ago | 0

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How to recover the Data (fields) from the Structure
allstats = [stat.sfit] should save all the outputs in an array for you. diff(yfit) should give you the interval...

nästan 13 år ago | 0

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starting, stopping and waitFor in a timer
I am not exactly sure what you want - but I think this is close. 1. Creating a timer that blocks the MATLAB command line for ...

nästan 13 år ago | 0

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Way to get handle to just brushed object?
Not sure if this is what you are doing or not, but this seems to work for me. It works very nicely on lines (at least in my limi...

nästan 13 år ago | 0

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How do I generate a matrix based on a formula?
You can use backslash to solve this: n = 9; % Fill in the correct terms for your non-zeros values. A =diag(-4*ones(...

nästan 13 år ago | 0

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Answered
To generate vertice mesh from a series of contours
I believe this should work for you. % Generating some contour data x = rand(100,1)*4-2; y = rand(100,1)*4-2; z = ...

nästan 13 år ago | 0

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Answered
how to plot axes onto an image
This should help you to start with the problem. Everything is centered at the origin (0,0) but that could be adjusted by changin...

nästan 13 år ago | 2

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Colorbar/varycolor ticks
I believe you don't want to change the ticks but the limits of the axis that contains your colorbar: h = colorbar; set(h,'Ylim'...

ungefär 13 år ago | 1

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GPUArray ANDs and ORs
Have you tried the option of creating your own kernal from a MATLAB function? I wrote a brief code tidbit below. Note: I hav...

ungefär 13 år ago | 0

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Mysterious behavior in parfor (I know, sounds basic, but...)
There were a couple questions in your quesiton, so let me go through them individually. 1. numlabs and labindex alway return...

ungefär 13 år ago | 1

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Answered
I want to store a big matrix (a 720GB variable )
I can think of two ways to do this: 1. If you have a sparse matrix, then I would use the sparse data type in MATLAB and probab...

ungefär 13 år ago | 1

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Error Message: "Error: Function definitions are not permitted in this context." How do I fix this?
When you define a function in a file - you use the function [R] = HydraulicRadius(W) when you call it to use it, you do ...

ungefär 13 år ago | 0

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Answered
Multithreading does not work for external programs called by the 'system' command
I have seen this before. I think this is how we resolved it. Basically, MATLAB and Windows may use different environment va...

ungefär 13 år ago | 1

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Answered
Rescaling colormap/colorbar
If you get a handle to the colorbar, then you can set the y limits of the colorbar axis. This will allow you to show only the co...

ungefär 13 år ago | 1

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custom stopping criteria when using fmincon
You can set the stop flag as part of the output function. It is described in the documentation here: <http://www.mathworks.com...

ungefär 13 år ago | 0

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Apply quad (or dblquad) on a series of integrals
The only thing I could think of was to use arrayfun. I don't think it will be much faster you for (at least in my tests) but it...

ungefär 13 år ago | 0

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Loading files
I find this chart helpful. It lists the file types that core MATLAB can read/write and what functions to use. <http://www.ma...

ungefär 13 år ago | 0

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Programming
If I understood your question correctly, I would propose the following: First, find the places where 1 changes to 10 or 10 t...

ungefär 13 år ago | 0

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point values from the curve
If you want to get points from a spline curve - I would suggest using ppval x = 1:10; y = cos(x); pp = spline(x,y); ...

ungefär 13 år ago | 0

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Error when using fprintf to show a string
The output when you call XLSREAD with two output variables returns the second output is the text fields in cell array. This mean...

ungefär 13 år ago | 0

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Help with Varargin
I would suggest the following. This way, the input values are reflected. Hardwire the inputs you definitely want, and use vara...

ungefär 13 år ago | 0

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VideoWriter Help
You can set the rectangular frame you want to capture. currFrame = getframe(gca,[-10 -10 400 400]); The value of cdata i...

ungefär 13 år ago | 1

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Plotting temperature vs time using two equations and ode45 function
You can use a persistent variable (e.g. switchVar and initially set it to zero) in your deltaT function persistent swi...

ungefär 13 år ago | 0

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curve fitting toolbox
The curvefit object you get out of curvefitting tool will allow you to take a derivative at a point using the differentiate meth...

ungefär 13 år ago | 1

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process image and plot graph
Jiro Doke has a tool (GRABIT) on File Exchange that allows you to pick points along the curve of a jpeg and then import them to ...

ungefär 13 år ago | 1

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Extracting white blood cell from cell samples
This should be enough to get you started. I filtered the purple cells by looking at the blue color plane. I then removed any n...

ungefär 13 år ago | 0

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two point boundary vale problem
The function bvp4c should be able to get you started. There are some nice examples in the documentation for bvp4c that shoul...

ungefär 13 år ago | 0

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Matlab with dual core uses only 50% cpu (R2010b, Intel Core 2 duo T9300)
It depends which version of MATLAB you are using. MATLAB started including multithreaded functions in R2007a. I believe multith...

ungefär 13 år ago | 3

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image segmentation on meat picture
I would filter by the red color plane. See below: myImage = imread('too-much-red-meat101.jpg'); rPlane = myImage(:,:,1)...

ungefär 13 år ago | 0

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Answered
uniformly distributed coordinate points
You can also do the following if you want a uniform grid: [X,Y] = meshgrid(linspace(1,1000,100),linspace(1,1000,100)); T...

ungefär 13 år ago | 2