Community Profile # Voss

Last seen: Today Actif depuis 2013

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Variables in for loop not updating in following iterations
The loop has only one iteration because N is a scalar for x=N To loop N times, you can use for x=1:N

environ 3 heures il y a | 0

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is there any one line code for writing in this way? if it's please give me a way to write this.
T = [0 0.0018 0 0.0012; 0.0018 0 0.0025 0; 0 0.0025 0 0.0015; 0.0012 0 0.0015 0]

2 jours il y a | 0

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The error I get is "Unrecognized function or variable 'C12_22'." The cause of the error is that "C12_22" has been misspelled ...

4 jours il y a | 0

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Exceeds the number of array elements (0).
Either img or bounds (or both) is empty. Check img and bounds and figure out why one or both is not what you expect.

4 jours il y a | 0

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Warning message when creating surface plot.
You probably mean to use element-wise multiplication and division, in order to get a matrix Z the same size as X and Y: Z =...

6 jours il y a | 0

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a = b<0
a = b<0; checks if b is less than 0 and stores the result in a. If b is a scalar: if b is less than 0, then a will be true; ot...

6 jours il y a | 2

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Sprintf warning message on a function file
The warning is saying that, if all you do with the result from sprintf is to display it with disp, then you can display it with ...

6 jours il y a | 1

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How to iterate a structure name and save directory in a for loop?
saveDir = 'my/path/name'; cnt = 50; for j=1:10 cnt = cnt+50; S = struct('minTime',tmin,'maxTime',tmax); ...

6 jours il y a | 1

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Professor needs specific color for bar graph, but the hex code for the color is not working.

7 jours il y a | 0

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How to find out how many participants are in each group of my combined matrix (31230x5)
% some data like yours with participant IDs in column 1 % and group ID in column 2: data = [randi(40,31230,1) randi(8,31230,1...

7 jours il y a | 0

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Plot clear using MATLAB app designer.
cla(app.UIAxes, 'reset') https://www.mathworks.com/help/matlab/ref/cla.html

8 jours il y a | 1

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Next value in alphabet
nextLetter('d') nextLetter('s') nextLetter('z') % no next letter after 'z' -> error function next = nextLetter(letter) Alp...

9 jours il y a | 0

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Hiding exponent labels without scientific notation
Set the xticklabels when you set the xticks.

10 jours il y a | 0

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how to plot two graphs using a matlab?
semilog should be semilogx, and holf should be hold % semilog(x1, wattdis) %% I cannot plot this one. semilogx(x1, wattdis) ...

11 jours il y a | 0

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How to extract number of matrices with all elements zero and the indexes of those matrices in a struct
% making up some data like yours: gridcell_meancov = struct('grid',struct('mean',num2cell(rand(12,6)),'cov',squeeze(num2cell(ra...

12 jours il y a | 0

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How to split dataset into 2/3 for training and 1/3 for testing include plot the graph?
This: Ptest=idx(round(PD*N)+1:end,:);Ttest=idx(round(PD*N)+1:end,:) should be this: Ptest=idx(round(PD*N)+1:end);...

13 jours il y a | 0

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How to Plot an Exponential Process given equation
t= 0:0.1:10; %This is the interval I need concentration= 1.* exp(-1.*t); %This is the equation C(t)= C0* e^-kt plot(t,conce...

13 jours il y a | 0

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Array indices must be positive integers or logical values
You probably mean B.*(L - x) instead of B(L-x) in two places.

13 jours il y a | 0

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How do I plot multiple vectors in a graph
Like this? A = 1:6; B = 1:6; [Ap,Bp] = ndgrid(A,B); plot(Ap,Bp)

13 jours il y a | 0

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Getting Error while using Transparency to object (alpha)
You have a variable called "alpha" in your workspace, which is preventing you from running the "alpha" function. You should rem...

14 jours il y a | 0

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Can someone find why I get the error: Index in position 2 exceeds array bounds. Index must not exceed 1.
1. Consider the following. Start with x_new as you have it initially: X= [46,52,55,71,32,5,6,11,14;47,56,47,58,59,66,70,72,71];...

14 jours il y a | 1

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Array indexing in matlab
z = reshape(1:30,6,5).' % [] not necessary; 1:1:30 is the same as 1:30; .' is transpose, ' is complex conjugate transpose [z([1...

14 jours il y a | 1

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Unable to find file , load file to xl file .
Two things: 1) You're using y1 = xlsread('F:\matlab\bin_my_excel_file'); % ^ underscore but 'bin' i...

14 jours il y a | 0

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how do I change the position where a gabor patch is displayed (Psychtoolbox)?
According to the documentation: http://psychtoolbox.org/docs/Screen-DrawTextures you can specify the location(s) to draw to as...

15 jours il y a | 0

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How to collect and show answers captured by using key press function (keypressfnc)?
The main problem here is that the KeyPressFcn is executed every time the user hits a key while the figure has focus. That is, Ke...

15 jours il y a | 0

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How can I mark the vertex of a hexahedron with dots?
Use the 'Marker' (and possibly 'MarkerSize', 'MarkerFaceColor', 'MarkerEdgeColor') properties. <https://www.mathworks.com/hel...

15 jours il y a | 0

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I need help with this app designer code
Do you mean to use im2gray?

15 jours il y a | 0

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General indexing into structure
One way to do that is: structure.field2(strcmp(structure.field1,'string')) because you want to index into field2, not index in...

16 jours il y a | 0

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How do i make matlab diferentiate words in cell array
C = {'12100213.csv' '12100214.csv' '12100215.csv' '12100216.csv' '12113013.txt' '12120423.txt' '12120516.txt'}; [~,~,ext] = f...

16 jours il y a | 0

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Split numbers in a cell into a few columns in V2011
You can try str2num: str = ' 2 5 0.866000 2 1'; val = str2num(str)

16 jours il y a | 0

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