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**Content Feed**

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...

4 months ago | 26

Solved

Block average

Given a matrix, calculate the block average of each disjoint sub-matrix of the same size. Assume that the size of the matrix alo...

11 months ago

Submitted

Conservative regridding

Interpolates/regrids the 1D (interval) or 2D (surface) data onto a finer grid so that the total/average is conserved

2 years ago | 2 downloads |

Solved

Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

4 years ago

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It is high time Matlab updates some of the official answers, as many are outdated.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...

4 years ago | 3

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...

4 years ago | 0

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 ...

4 years ago | 0

| accepted

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','...

5 years ago | 10

| accepted

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

6 years ago

Question

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...

8 years ago | 0 answers | 0

### 0

answersHo 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...

8 years ago | 0

Question

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...

8 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

9 years ago | 1 answer | 0

### 1

answerAny 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...

9 years 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...

9 years ago | 1 answer | 0

### 1

answerQuestion

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...

9 years ago | 2 answers | 0

### 2

answersElegant 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 |...

9 years ago | 0

how to assign the pixel to clusters based on euclidean distance ??

<http://www.mathworks.nl/help/stats/kmeans.html>

9 years ago | 0

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 ...

9 years ago | 0

| accepted

Plot at the same figure

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

9 years ago | 0

| accepted

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...

9 years ago | 1

| accepted

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!

10 years ago | 1

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

10 years ago | 0

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> ...

10 years ago | 0

3D matrix manipulation. FInd values of given positions

This should do it: sum(matrix2(matrix1~=0))

10 years ago | 0

| accepted

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...

10 years ago | 0

| accepted

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...

10 years ago | 0

| accepted

getting name of all functions i use in m file (or script)

<http://www.mathworks.nl/help/matlab/matlab_prog/identify-dependencies.html>

10 years ago | 0

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...

10 years ago | 0

| accepted