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Henrik


Kobenhavns Universitet

Last seen: plus d'un an il y a Actif depuis 2014

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Question


Remove error bar ends for R2014b?
Hi all Is there any way to remove the error bar ends in matlab R2014b? I used a function called removeErrorBarEnds for thi...

environ 9 ans il y a | 1 réponse | 2

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Question


Horizontal errorbar in R2014B
Hi guys Is there any way to have both horizontal and vertical errorbars in R2014b? Thanks in advance!

environ 9 ans il y a | 1 réponse | 0

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error using Matrix Dimensions
If you format your code it's easier to read for people here. The error message means that some of the matrices that you multi...

environ 9 ans il y a | 0

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Contour/3d plots for large data sets
Try plot3 or scatter3 For a contour plot you need a nxn matrix

environ 9 ans il y a | 0

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Importing 30 .dat files in order
for k=1:30 data=load(['composite' num2str(k) '.dat]); data_matrix(:,k)=data; end

environ 9 ans il y a | 0

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Change print format of all output figures using one command
So you have this command 50 places in the script? A quick fix would be to do a search and replace for print('-djpeg' --> prin...

plus de 9 ans il y a | 0

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Can anyone explain me what this line do strcmp(D(i).name,'..')?
strcmp(D(i).name,'.' this compares the string in D(i).name to '.'. If the string is indeed '.', it returns TRUE (in MATLAB,...

plus de 9 ans il y a | 0

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Generating a for loop and writing data
This could be a start. I don't know exactly what output stepwisefit gives, and which parts of it you want to save, but I've give...

plus de 9 ans il y a | 1

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Polynomial with user defined coefficient?
I will suggest breaking the problem into smaller pieces that can be done individually, and then stitching them back together. ...

plus de 9 ans il y a | 0

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How can I plot a picture instead of "linespec" requirements?
If you want to plot a picture, then maybe surf or imagesc is the right command. EDIT: What is it exactly you want? Do you ...

plus de 9 ans il y a | 0

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find n-st element that meet a logical expression
I can't think of a way to do your question 1 in one line of code, but is it really that important to remove one line of code? ...

plus de 9 ans il y a | 1

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Change input name when running a script
I'm not sure what you're asking, but does this help? names={'test1', 'test2'}; for k=1:length(names) autoname=names{k...

plus de 9 ans il y a | 0

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All possible combinations for fixed columns?
I don't know how fast this will be for large n, but this seems to do what you want. You can probably vectorize at least one of t...

plus de 9 ans il y a | 0

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making counter for partial discharge due to high voltage in solids
I see several things that could be the issue. Try doing clear all Before you run your script. Then you'll notice tha...

plus de 9 ans il y a | 0

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How to count occurrences of a letter?
A quick and dirty solution could be F_count=0; switch x(i) case {'a','A'} grade = 'F'; ...

plus de 9 ans il y a | 1

Question


Importing data from text file
I need help reading a number of data files. An example of how the files look is the following: # some header text and numbe...

plus de 9 ans il y a | 1 réponse | 0

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generate sinusoid from complex-amplitude representation
The commands real and imag are probably what you are searching for.

plus de 9 ans il y a | 0

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fprintf from a switch/case?
This is not the most sophisticated solution, but it works.. switch major case 1 text_to_print='130'; cas...

plus de 9 ans il y a | 0

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How to tell Solve function to only display real roots?
I don't know if this is what you want, but you could do something like real_soln=soln(imag(soln)==0); or if there are fl...

plus de 9 ans il y a | 1

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wheres the problem of this fiter code
Without any explanations of your code it's hard to tell, but my guess would be that ZZ = filter(HH,1,imp) should be ...

plus de 9 ans il y a | 0

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Annoying behavior saving eps figures in MATLAB 2014
I don't know if this will solve the issue with the file size, but for me at least it solved the problem with white space outside...

plus de 9 ans il y a | 0

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How to impliment this without loop?
You example is a bit confusing to me, there seems to be several unnecessary complications, e.g. using fields. Anyway, here's...

plus de 9 ans il y a | 0

Question


How do I make surf accurately reflect my data?
Consider this example: A=zeros(5); A(3,3)=1; surf(A) view(2) When viewing this, one would be tempted to think that th...

plus de 9 ans il y a | 1 réponse | 0

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help me to reduce my function time runing
This should work: if true F=zeros(100,100); %always preallocate c = 1:100; V = 2 * (c-1); for r = 1:100 U = 1 ...

plus de 9 ans il y a | 1

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How can I accomplish the following?
A1=' '; for i=1:1:10 if i<10 A2=[num2str(i),',']; else A2=num2str(i); end A1=[A1,A2]; end disp(A1) You can pr...

plus de 9 ans il y a | 0

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How can you avoid for loops by using vectorization?
I'm a bit tired, so here are just a few suggestions. You could calculate C once and for all outside the loops, this will save...

plus de 9 ans il y a | 0

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How to hide 'ans= ' in sprintf output?
Terminate the line with a semicolon: sprintf('The array is %dx%d.',2,3);

plus de 9 ans il y a | 0

Question


Can you do this calculation any faster?
Hi there I am trying to optimize some code, an example is given below. In my code, v_ustar etc are calculated elsewhere, and ...

plus de 9 ans il y a | 1 réponse | 1

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Question


Find zero of function with least amount of iterations
Hi there I have a function that takes a very long time to calculate (can be several hours), and I need to find when it become...

plus de 9 ans il y a | 1 réponse | 0

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GPIB access to Keithley instruments
I managed to find a solution: the problem was that 64-bit MATLAB did not recognize the drivers. I installed 32-bit MATLAB and no...

plus de 9 ans il y a | 0

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