Community Profile # Voss

Last seen: 3日 前 2013 以来アクティブ

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How do I prevent MATLAB from converting characters into their ASCII equivalent?
number = 7; char_vector = repmat('*',1,number); disp(char_vector);

5日 前 | 0

How to interleave data from 2 doubles of differing length?
How about this? A=[1;2;11;20]; B=[3;4;5;6;7;8;9;10;12;13;14;15;16;17;18;19]; AB = NaN(max([A;B]),2); AB(A,1) = A; AB(B,2)...

5日 前 | 0

How can I convert 5.000000e-01 to 0.5 in Matlab? Please help. Thank you so much.
format longE 0.5 format longG 0.5 Documentation: format

7日 前 | 0

Browsing through figures, without opening them all
You can use load to inspect .fig files programmatically: f = figure(); plot(1:10,'ButtonDownFcn','disp(''ok'')'); saveas(f,'1...

7日 前 | 0

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...

11日 前 | 0

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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...

11日 前 | 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...

12日 前 | 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...

13日 前 | 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...

13日 前 | 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...

14日 前 | 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...

14日 前 | 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...

14日 前 | 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 ...

15日 前 | 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)

17日 前 | 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; ...

17日 前 | 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...

18日 前 | 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...

18日 前 | 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...

21日 前 | 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...

21日 前 | 0

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

22日 前 | 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{:})

23日 前 | 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...

24日 前 | 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

26日 前 | 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 ...

27日 前 | 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...

28日 前 | 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...

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

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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 ...

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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(...

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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

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