Community Profile # Voss

Last seen: 3 giorni ago Active since 2013

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How to set y axis limit same for 2 subplots in a figure object?
Store the axes objects returned from subplot(), and then set their YLim: features = 99; for feature = 1:numel(features) h...

3 giorni ago | 0

Error using horzcat Dimensions of matrices being concatenated are not consistent.
Here's how you can add zeros to the beginning and end of your signal (with the extra zero going to the end in case the number of...

3 giorni ago | 0

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Hi, I have the following 1x10 matlab structure where all 10 elements are column vectors of varying sizes. Need to convert it to matrix as described below. Any help?
If S is your struct array and M is your matrix of zeros: for ii = 1:numel(S) M(ii,1:numel(S(ii).times)) = S(ii).times; en...

4 giorni ago | 1

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I'm trying to graph a function on an interval, and the graph either doesn't show up or is the wrong graph
x = linspace(-2,16,100); % y = (4*cos(x))./(x.*exp(x.*-0.75)); y = (4*cos(x))./(x+exp(x.*-0.75)); % ^ <---- h...

5 giorni ago | 0

Adding a string in front of every variable in a table
% read the table t = readtable('Ztable.xlsx','VariableNamingRule','preserve'); % modify the variable names t.Properties.Var...

5 giorni ago | 0

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Index exceeds the number of array elements. Index must not exceed 1.
This line: T=T(i) takes the ith element of T and stores it as T, after which T is a variable with one element. So any subseque...

6 giorni ago | 1

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help with smooth curve
Like this? x = 2:2:20; y = [1.23 0.95 1.1 1.44 1.47 1.1 1.21 1.4 1.1 1.39]*1e4; plot(x,y) x_new = 2:0.2:20; y_new = inter...

6 giorni ago | 0

Read a punch file
This may work: % read the file contents as a char vector: fid = fopen('sample.txt'); % (had to change extension to txt to uplo...

6 giorni ago | 0

Change axis color on parts of the mesh
Here's one way: [X,Y] = meshgrid(1:0.5:10,1:20); Z = sin(X) + cos(Y); C = 1 + (X <= 2 | X >= 9); surf(X,Y,Z,C) colormap([1 ...

7 giorni ago | 0

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I want to fix the zeros values in their same indices in certain two matrices A and B (to not be updated) in a cost function?
A = [0.1 0.2 0; 0.2 0.8 0; 0 0 0.7] newA = [1 2 3; 4 5 6; 7 8 9] idx = A == 0; A(~idx) = newA(~idx)

9 giorni ago | 0

Zero Matrix Values using Indices
Speed_ENU = [1,3,6,14,25,33; 11,12,15,45,15,67;1,32,16,4,25,3; 11,12,5,45,15,7;11,32,6,4,25,33; 1,12,5,44,15,67;11,31,6,4,25,3; ...

9 giorni ago | 0

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Create column into struct if 'if statement' met a condition
Here's one way: % construct a modified version of your variables: shape_area = [ ... struct('Geometry','Polygon','Column1...

10 giorni ago | 0

Requested 250000x250000 (931.3GB) array exceeds maximum array size preference
One of them is a 1x250000 row vector. You can transpose that one, or you can convert it (or both) to column vector(s): x1(:).*x...

10 giorni ago | 3

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extract numbers from a string.
str = '"sensor_serials": {"H1": "3637", "H2": "3638", "H3": "2787"}' numbers = regexp(str,'"(\d+)"','tokens'); numbers = [num...

13 giorni ago | 0

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How to remove a slash from fullfile?
Combine the 'MC_' and the i into a single argument. Like this: wtf= fullfile('C:\','Users','jessi','Desktop','HydrusMC','Simul...

13 giorni ago | 0

Replacing NaN with char
A = [1; 2; 3; NaN; 5; NaN;]; a = num2cell(A); a(isnan(A)) = {'Example'}; disp(a);

14 giorni ago | 0

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How to convert 3D cell of different dimensions to a single matrix
Maybe this does what you want: cat(3,hDp{:})

14 giorni ago | 0

checking folder has more than one file with similar name
% use the name of the folder you want to check: folder = './'; % get info about the files in that folder whose name starts w...

16 giorni ago | 0

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How do I access data inside a struct that is inside another struct that is inside a cell array
If B is the index of the struct you want in cell array A, C is a field of that struct, etc. A{B}.C.D

18 giorni ago | 0

How to extract particular row values from cell arrays with varying cell lengths?
N = numel(x.total_states); first_fragment_labels = cell(1,N); first_fragment_signal = cell(1,N); for ii = 1:N ...

19 giorni ago | 0

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How do I compare values within a for loop using if/else?
Seems like you want to compare one element of Vx and Vy at a time: if Vx(i,j,k) == Vy(i,j,k) disp('X = Y') elseif...

20 giorni ago | 1

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How can i open a list of files?
folder = 'Path\to\your\directory'; old_ext = '.txt'; % original extension new_ext = '.dat'; % new extension old_files = dir...

25 giorni ago | 0

Modifying MATLAB code according to conditions (MATLAB)
B = max(A); C = find( A == B , 1 ); Or [B,C] = max(A);

26 giorni ago | 0

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matrices specific value selection
Like this? % constructing your B.values B.values = cat(3,[ ... 92 99 1 8 15 67 74 51 58 40 ...

27 giorni ago | 0

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splitting Cell array in a loop
X = 1:32; Y = cell(1,4); j = [1,9,17,25]; for i = 1:numel(j) Y{1,i} = X(j(i):j(i)+7); end disp(Y) Or: Y = num2cell(...

27 giorni ago | 0

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Creating vector from a cloumn of a matrix
Transpose the column: RowMatrix = Matrix(:,1).' https://www.mathworks.com/help/matlab/ref/transpose.html

27 giorni ago | 0

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How to summation using for loop with a vector
"... not to sure how to make a for loop for SXY ..." The square brackets give you a syntax error: for [i = 100] Removing them...

27 giorni ago | 1

How can I find an specific value inside an array without using the find function?
You can use the max function with second output argument, applied to the logical array w>=10, in order to return the first index...

28 giorni ago | 0

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