Stephen23

Con actividad desde 2014

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How do I fix my Nan issue within a recursive function?
Replace this (which returns logical indices): FirstID = M==-1; with this (which returns the linear index): FirstID = find(M==...

alrededor de 10 horas hace | 0

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How to import multiple .mat files to workspace?
The basic problam is that you are not supplying the fileparth to LOAD. You can improve your code as well: P = 'D:\Rahul\Data_to...

alrededor de 21 horas hace | 0

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Error in code, parenthesis perceiving as comment for some reason
Explanation: for some reason you seem to be running this literal code: Q_est = updateQ(...) instead of calling UPDATEQ etc. wi...

1 día hace | 1

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smart function to switch functions
You could use STR2FUNC: str = 'ode23'; odesolver = str2func(str); odesolver(@fun,..) or simply use FEVAL: feval(str,@fun,.....

1 día hace | 0

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Reshaping a matrix based on the first row
A = [270,270,270,271,272,272,273,273,273]; B = [ 12, 2, 3, 14, 5, 2, 6, 8, 11]; X = ~isnan(A); C = findgroups(A(X)); R...

2 días hace | 0

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sorting non-exact x/y data into rows and columns, typewriter style
x = [1.01,2.01,1.02,2.02]; y = [1.01,1.02,2.01,2.02]; m = [x(:),y(:)]; % simpler [~,id] = sortrows(round(m),[-2,+1])

2 días hace | 0

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How can I extract an array of numbers from a text-formatted cell array of strings.
C = {'20s';'15m';'';'24s';'';'44s';'3h';'40m';'20s';'';'14s'} F = @(t)prod(sscanf(t,'%f')); V = cellfun(F,regexprep(C,{'h$','m...

3 días hace | 0

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Update an Excel file after each Matlab calculation
You can use a COM server to trigger Excel to recalculate the worksheets: https://www.mathworks.com/matlabcentral/answers/100938...

4 días hace | 0

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Error using (function_name). Too many output arguments.
You did not define the function to return any output arguments: function calcolo_cp(T,fluido) If you intended to return e.g. C...

5 días hace | 2

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Vectorize nested for loops with indices and subscripts
A = [1,2,0,2;2,1,3,0;0,3,1,3;2,0,3,1] matArray = unifrnd(-1,1,[4,4,10]) Method one: [X,Y] = meshgrid(1:size(matArray,3),A(:))...

5 días hace | 0

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Can a custom argument validation function alter the field names of its input variable?
The hard part is not validation, but mapping random fieldnames to your desired fieldnames. Notet that argument validation does ...

7 días hace | 0

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How to write all cells of structure in excel sheet ?
Why is a scalar structure nested inside a (pointless) scalar cell array? Why are lots of scalar numerics stored inside a cell a...

7 días hace | 2

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Enviada

Custom List / Arbitrary Sequence Sort
Sort a text array into the order of custom lists / arbitrary text sequences. Sort words with Latin-, Greek-, and Cyrillic-based ...

8 días hace | 4 descargas |

Respondida
How to define variable names for resampling?
You should: replace the ISMEMBER with ENDSWITH get rid of those asterisks For example: endsWith(files(i+j).name, {'_B03_10m....

9 días hace | 0

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How should I fix my regular expression to parse this txt file?
"It seems that my regular expression is way too broad and causing this problem." There are several locations where your regular...

11 días hace | 0

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Respondida
What is the equivalent datetime() call to the clock() function?
Note that DATETIME is an object with properties, so (depending on your requirements) accessing its properties is a simple option...

14 días hace | 0

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How can I convert matrix to cell?
https://www.mathworks.com/help/matlab/ref/mat2cell.html A = reshape(1:40000,100,400)'; C = mat2cell(A,4*ones(1,100),100)

14 días hace | 0

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How to name and save the results using the name of imported file ?
A much better approach is to store the data in e.g. a structure array: P = 'absolute or relative path to where the files are sa...

15 días hace | 0

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Question on creating dynamic matrix variables
"Or alternatively, is there a neat way to do so?" Of course there is: indexing. Either into a numeric array or into a container...

17 días hace | 0

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Building an array of strings that might be empty
"What am I missing?" The differences between strings and characters. Do not mix up string arrays with character vectors (which ...

19 días hace | 0

Enviada

Maximally Distinct Color Generator
Generate maximally-distinct colors in an RGB colormap.

19 días hace | 39 descargas |

Respondida
Find a value using an index obtained from a different matrix with same dimensions
The efficient MATLAB approach: tmc = readmatrix('Total_matrix_cases.txt'); tmr = readmatrix('Total_matrix_rotation.txt'); [tm...

19 días hace | 0

Respondida
Using a menu to generate variables for larger code
For the 1st dialog box: V = str2double(answer); maxvel = V(1); dragco = V(2); width = V(3); mass = V(4); accdur = V(5);...

21 días hace | 0

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Respondida
3D indices for particular values in a 3D array
Use IND2SUB: X = randi(9,4,3,2) [R,C,P] = ind2sub(size(X),find(X==8))

21 días hace | 0

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how assign cellarray to field Struct
"thank..but it's possible to avoid loop?" Of course (depending on the sizes and classes of APP, SIS, etc): app.Sis = struct('b...

21 días hace | 0

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Generate Array of Random Values
D = sort(randi([-9,9],7,2),2) V = rand(7,13); V = V.*diff(D,1,2)+D(:,1)

23 días hace | 0

Respondida
Hi, I want to speed up my script with double loop.
X = permute(A,[3,2,1]) + permute(B,[2,3,1]) The data arrangement in memory is not optimal for that operation. Use BSXFUN for ve...

24 días hace | 1

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Respondida
How to replace exact char in a cell array from another reference cell array
This is difficult because 'x1' is also a substring of 'x10'. But making a few assumptions it might be possible: A = {'x1', 'x10...

24 días hace | 1

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Merge two matrices taking non-Null values
A = [8,8,8,8,NaN;32,32,25,31,NaN;56,56,43,53,NaN;81,80,60,76,NaN;105,103,78,99,NaN;129,127,95,122,NaN]; B = [8,NaN,8,8,8;32,NaN...

25 días hace | 1

Respondida
Dynamically Make a Variable Name
This is MATLAB so the best solution is to use indexing, just as the MATLAB documentation shows: https://www.mathworks.com/help/...

26 días hace | 1

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