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per isakson


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2.424 total contributions since 2010

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Answered
Trying to see if a variable is an integer or not
Try this %% x=2.5; answer = ( x == floor(x) )

1 día ago | 0

| accepted

Answered
Not enough input arguments.
You need to call the function, Lorenz, with two input arguments: t and x. E.g. %% x = (1:6); t = nan; xprime = Lorenz( t, x...

3 días ago | 0

| accepted

Answered
Help indexing: How to index at the interfaces of cells and not the cells
Index in position 2 exceeds array bounds U(:,j+2) is most likely the problem. I assume that the size of U is NEQxN. The max...

4 días ago | 1

| accepted

Answered
Problems in reading large matrix with large empty cells
This script reads your sample file %% opts = fixedWidthImportOptions('NumVariables',36,'DataLines',4,... 'VariableNames',{'IN...

5 días ago | 0

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Answered
out of memory error for large data
See How to export complex-valued matrix to HDF file

5 días ago | 0

Answered
Error: Not enough input arguments
Accourding to the definition function [ U_RK ] = RK4( U_T, Res, dx, dt, k, N ) requires six input values. Your call of the fun...

10 días ago | 0

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Answered
Best Matlab Editor replacement?
I have not always been loyal to the Matlab editor (ME) Long time ago I used the full version of the ED editor that comes (or di...

10 días ago | 0

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Answered
Getting error while deleting every row of the matrix M that contains the variable x
The trick is to iterate in reverse order, i.e a:-1:1 instead of 1:a. Try this %% M = magic(5); x = 13; N = Delete_var(x,M) ...

11 días ago | 0

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Answered
How to remove both leading and trailing zeros from a binary string?
Is this what you look for? %% A=["00000001111";"00000110010";"10111011100";"00001000110";"11111010000";"00000001010"]; %% B ...

12 días ago | 0

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Answered
MATLAB Answers Wish-list #5 (and bug reports)
I wish Answers would automatically reject comments like "I did that but it didnt work"

13 días ago | 1

Answered
I want to read a bunch of files inside a loop function in MATLAB, but when I try the following code:
What do you suppose that the following statement will do? j = (i * 2000000); Replace A = dlmread('gr_at_0.l_%d', j); by A =...

13 días ago | 0

Answered
unable to make directory in specified folder
"it won't recognize this slef-made folder" Did you add it to Matlab's search path? On my system, R2018b,Win10, your script wo...

15 días ago | 1

Answered
How to import a function from another package
Your folder, Model, is not a Matlab package. Package folders always begin with the + character. See Packages Create Namespaces....

16 días ago | 0

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Answered
Split a string into 4 character groups?
"Split a string into 4 character groups?", "split this output string into groups of characters" and "I want to group at this sta...

18 días ago | 0

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Answered
Please, help with Matlab code
Your function works just fine longestword("Heat","Lakers","Warriors") longestword("cent","centennial","century") longestword(...

18 días ago | 0

Answered
How to read in large text file with special delimiters?
"Is there any way to specify your own row and column delimiters to be able to read in this data?" No, I don't think so. How la...

18 días ago | 1

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Answered
Nested elseif statement syntax
There is no else block in the outer if-elseif-else-end. This code will display something only for inputs(1)==0 and for inputs(1)...

19 días ago | 0

Answered
how to simulate different investments
Based on your question, I've made a small object oriented demo. You don't prescribe how many shares an investor will trade in...

20 días ago | 0

Answered
can anyone help me prepare the code
Problems with your script The long lines make the code hard to read. Numerous statement separators are missing I added line ...

21 días ago | 0

Answered
is it possible to create array of strings or char from struct of cell arrays
There are character arrays (See Text and Characters) A(1).name='one'; A(1).val=1; A(2).name='two'; A(2).val=2; {A.name} [A.na...

21 días ago | 0

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Answered
Changing elements in a MxN matrix
Does this help? %% matrix = magic(10); matrix = triu( matrix,-4 ); matrix = tril( matrix, 4 ) %% This is better, it only ...

22 días ago | 0

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Answered
Extracting values out of a cell array with tables
This script puts all the numerical data into a row vector (column-wise). You didn't say anything about order. %% load('CA.mat'...

22 días ago | 1

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Answered
Issues with plotting/best method
I added 'd' to all your plot-commands plot(b0(1,1), z(1,1), 'd' ) keyboard hold on plot(t0(1,1), z(2,1), 'd' ) plot(b1(1,1)...

24 días ago | 0

Answered
Organizing images in datastore and accessing them with parameters
The statement imds = imageDatastore(location) creates an instance of the class, ImageDatastore. My first idea was to subclas...

27 días ago | 0

Answered
Brace indexing is not supported for variables of this type.
"How do I call the sort_nat function to sort folders?" Examples Find sorted file names >> sad = dir('d:\m\cssm\*.txt'); >> ...

alrededor de 1 mes ago | 0

Answered
understanding "<" operator line
Consider the two lines midCirc = X.^2+Y.^2 < (1/n)^2; NmidCirc = not(midCirc); The first line assigns a logical value (true/f...

alrededor de 1 mes ago | 0

Answered
Searching for a matched string within nested cell and delivering the index
Assume there is ONE cell contaning 'TOTAL' Try %% ix = find( cellfun( @(cac) strcmp(cac{1},'TOTAL'), values ) ); num = value...

alrededor de 1 mes ago | 0

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Answered
Take average of multiple matrices
Try this %% load('data.mat') num = cat( 3, phi_BFD_v_sum{:} ); avg = mean( num, 3 ); peek >> avg avg = 0 ...

alrededor de 1 mes ago | 1

Answered
Pre-allocating cell containers
"I have pre-allocated memory". After pre-allocating memory for a variable you must not change its size. If you do, the effect o...

alrededor de 1 mes ago | 0

Answered
how to save the outputs obtained by a for loop repeated n times
tot is overwritten in each iteration of the for-loop Replace tot = (Tin{idx(:,i),i+1:i+3}); by tot(:,i) = (Tin{idx(:,i),i+...

alrededor de 1 mes ago | 0

| accepted

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