lvn

Last seen: ongeveer een jaar ago | Active since 2013

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How do I create a logarithmic scale colormap or colorbar?
set(gca,'ColorScale','log') https://nl.mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html#budumk7-ColorSca...

ongeveer een jaar ago | 27

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How can I recursively process files in subdirectories using MATLAB?
It is high time Matlab updates some of the official answers, as many are outdated. This is an example, as of R2016b, no need fo...

meer dan 4 jaar ago | 3

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Reducing Density in Geographical Data
You first have to get the indices of which elements are preserved. With those you can construct new elevation, and length vector...

ongeveer 5 jaar ago | 0

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How can I change the colormap for each tab in a tabbed figure?
The code you gave didn't run on my PC because of a problem with viewshed. The following code runs and does not show the problem ...

ongeveer 5 jaar ago | 0

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How to change the line width for fplot?
Starting in R2016a, you can specify the 'LineWidth' property the same way you do for plot. For example: >> fplot(x1,[0,2],'k','...

bijna 6 jaar ago | 10

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Fat and ugly lines in eps export
I have a high resolution map of the world. When I try to export it as an eps with print('-depsc','-painters', '-loose','tes...

meer dan 8 jaar ago | 0 answers | 0

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Ho to plot a pressure map?
Looks to me like you are looking for an interpolation function to move to a finer grid. See here for the 2D version: <http://mat...

meer dan 8 jaar ago | 0

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How to generate surface preserving probability density function from histogram
I have a histogram with non uniform bins. From this I would like to estimate a smooth probability density function(basically a...

meer dan 9 jaar ago | 1 answer | 0

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VPA behavior, workaround requested
Does anybody now a workaround for this behaviour of vpa?: syms a b c c=a+b; a=1; b=1; vpa(c) ans = a + b ...

meer dan 9 jaar ago | 1 answer | 0

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Any recommendation how to vectorize this double for loop?
A couple of things: 1. If size(MM(looper,:),1) is independent of looper (as you suggest?), you can simply precalculate it bef...

ongeveer 10 jaar ago | 0

Question

Symbolic array pre-allocation
Symbolic array pre-allocation only allocates pointers as I understood it from reading the forum. This is causing a major slowdow...

ongeveer 10 jaar ago | 1 answer | 0

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Question

Most populated range of floating point numbers in array
histc can be used on a floating point array to find the bin with the largest number of elements. However these bins are fixed, a...

ongeveer 10 jaar ago | 2 answers | 0

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Answered
Elegant way to know in which iteration of for I am
This should do it: if (protocol_ID==1 || protocol_ID==4) && n_runs > N_categories( 1 ) .. elseif (protocol_ID==6 |...

meer dan 10 jaar ago | 0

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how to assign the pixel to clusters based on euclidean distance ??
<http://www.mathworks.nl/help/stats/kmeans.html>

meer dan 10 jaar ago | 0

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How to solve 3 equations with 3 unknowns using 'for' loop?
I guess you are meant to solve these equations by iteration? Something like this would do x=1;y=1;z=1; for l=1:30 ...

meer dan 10 jaar ago | 0

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Answered
Plot at the same figure
The problem are these lines: figure1 = figure('Color',[0 1 1]); axes1 = axes('Parent',figure1,'FontSize',12,'FontName','...

meer dan 10 jaar ago | 0

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Problem to add greek chars as ticklabel
It does not seem supported, but there is a work around: <http://www.mathworks.com/matlabcentral/answers/102053-how-can-i-make...

meer dan 10 jaar ago | 1

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Answered
Extra term in "min" function in while loop
I guess it is a remainder of some old code. It can be removed, it does nothing!

meer dan 10 jaar ago | 1

Answered
How to extrapolate data from a matrix of x axis values and corresponding y axis values?
This is for a linear extrapolation: interp1(x,y,4,'linear','extrap') ans = 2.5000e+03

meer dan 10 jaar ago | 0

Answered
How to plot a circle on top of my plotted image
See this answer <http://www.mathworks.com/matlabcentral/answers/98665-how-do-i-plot-a-circle-with-a-given-radius-and-center> ...

meer dan 10 jaar ago | 0

Answered
3D matrix manipulation. FInd values of given positions
This should do it: sum(matrix2(matrix1~=0))

meer dan 10 jaar ago | 0

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Input data from one array to another
The main problem with your code was the double for loop. Even if a match was found, for say j=50; it was overwritten in the seco...

meer dan 10 jaar ago | 0

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what is the function of 'eval' ?
Eval can be used to run matlab commands which are not known in advance, but only at runtime. In your example eval executes the c...

meer dan 10 jaar ago | 0

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Answered
getting name of all functions i use in m file (or script)
<http://www.mathworks.nl/help/matlab/matlab_prog/identify-dependencies.html>

meer dan 10 jaar ago | 0

Answered
Matlab Cropping Plots to remove whitespace
On the fileexchange there are a lot of functions out there that can do this for you. I use for instance spaceplots <http://www.m...

meer dan 10 jaar ago | 0

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Answered
how to make spatial plot using hdf5-1.8.8 data in matlab R2009b?
It looks like 'temp' is not the right variable to use here and is used for calibration purposes. From the manual <http://122.2...

meer dan 10 jaar ago | 0

Answered
Creating a new variable in a loop automatically. Please help!
You can use the eval function to create such variables. However this practice is not recommended and can almost always be circum...

meer dan 10 jaar ago | 0

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Answered
Several vectors as inputs to function
It all depends whether your function BSCall supports vector input. If it does, then just Values=BSCall(S,K,T,v,r) with ...

meer dan 10 jaar ago | 0

Answered
How can I substitute values in a matrix if they equal a certain value?
I hope this is what you mean: newmatrix=X1; newmatrix(X1==255)=X2(X1==255);

meer dan 10 jaar ago | 0

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How to sort rows of a 2D array, such that all elements along a diagonal are non-zero?
For reference, here is a solution using the backtracking. The main algorithm part is around 20 lines. This is the initial s...

meer dan 10 jaar ago | 1

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