Recursively reversing large vector efficiently
Five ways to flip a row vector. The last one, reversal_v3(), answers your question. Recursion is by two order of magnitude slowe...

11 months ago | 0

Accessing properties in a class
There is nothing special with the name obj, it's just a name. The assignments in the method, fun1, creates a structure (named o...

11 months ago | 0

Gang-of-Four Design Patterns in MATLAB
I'm not aware of any "full or partial MATLAB collection" and I've search for it more than once. Googling for "design patterns ...

11 months ago | 1

How to relocate (left side) the legend in plot ?
Read the documentation on legend() and notice legend(___,'Location',lcn)

11 months ago | 0

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Creating charts in Matlab
Yes, see the function, bar( ..., 'stacked' ). However, it lacks the 3D character of the bars.

11 months ago | 1

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MATLAB Answers Wish-list #5 (and bug reports)
Background: I recently put some effort into answering How to store and reuse coefficients in a for loop. My answer together wi...

11 months ago | 1

How to store and reuse coefficients in a for loop
Caveat: I don't fully understand your code and what I say might not be relevant to your real project. "% Can this double for lo...

11 months ago | 1

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check ismember for each element individually
The function arrayfun() does the trick (i.e. hides the foor-loop) a=[ 1 2 3 3 5 6 6]; b=[1 2 3 5 6]; cac = arrayfun( @(ii) fi...

11 months ago | 0

Is it possible to put multiple functions in one matlab file file?
"I currently have six seperate scripts [you mean functions?]" What differs between the six functions? The name of the nc-files ...

1 year ago | 0

When constructing an instance of class, the constructor must preserve the class of the returned object.
I don't know C++. (For some reason you added the tag "C++".) I guess you are biased by some other language. You need to look cl...

1 year ago | 0

How do I make this a function?
Something like this. With Matlab it's common practise to use double for all numerical variables. (Matlab has "integer in floatin...

1 year ago | 0

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Create table from structure - alignment
I've modified the format specifier. %% mom.a = 1; mom.b = 2; mom.veryLongName = 3; header = {'Moment'; 'Value'}; fnames = ...

1 year ago | 0

How to replace a number in a row vector with NaN in certain condition
abs(x(6)-x(8)) is equal to 10. Accourding to x_new, x(8) should be replaced by NaN. Thus I have use ">=". %% vec = [15 13 9 ...

1 year ago | 1

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Getting Windows to open a file type using a MATLAB application
An alternative that doesn't require the Matlab compiler (but requires a Matlab license to run): Create a bat-file, e.g. read_xl...

1 year ago | 0

How can I read a '.dat' file on MATLAB?
google says: "A file with the . dat file extension is a generic data file that stores specific information relating to the progr...

1 year ago | 0

How to quickly find the indecies of elements in an array?
A = [1 9 2 8 3 7 4 6 5]; B = [5 6 7]; [~,ix] = ismember( B, A )

1 year ago | 0

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creating a character array in which each element takes multiple characters put together
The RHS of the two assignments in the for-loop are they correct? Don't show data as images. Seven lines can be included as cod...

1 year ago | 2

Why is command window printing out all the code?
There is a function called echo(), which I've never used. Have you run echo on by mistake? I reproduced the behavior you see ...

1 year ago | 0

Extracting data using regular expression
"all the columns [...] named "Physics", "Time", "dt", "Progress", "Nonlinear Iteration" "Linear Iterations"...."Nodes After Adap...

1 year ago | 1

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Load .dat files from subfolders with different names
Yes to both questions. With help of the code snippets below I guess you can put together a script. sad = dir( fullfile('Folder...

1 year ago | 0

Index exceeds the number of array elements (1).
Here are some links on debugging in Matlab Debug a MATLAB Program Debugging in MATLAB Debugging session Debugging Approaches...

1 year ago | 0

Specific values in an Array
R=[]; for i=1:1:5 for y=5:1:10 eq1=i*y; %% To save the values: R=[R; i y eq1]; end end a...

1 year ago | 1

Auto fetch input files to process from a specified folder
"I have a lot of data files that I would like to process through my code [...] each file from a specified folder one at a time" ...

1 year ago | 0

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Plotting a limited number of elements
"plot the first 5" An if-statement should do that. Replace plot(jvals(i,:), vetor_momentoj(i,:), '-o'), hold all by if i <= ...

1 year ago | 1

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How to modify a function handle?
That's simpler than you thought %% f1 = @(y) y; f2 = @(y) f1(y)*2; %% f2(5)

1 year ago | 0

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Storing variables in a for loop within another
"store the variable "vetor_momentoj" [...] in terms of the indexes i and j." Something like this? I replaced the calculation of...

1 year ago | 0

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Calculate with initial value
There is nothing that terminates the execution of the loop when convergence is reached. Thus, the while-loop will run until the ...

1 year ago | 1

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How to save data from a file with text and numbers?
"load this file and save lines starting from 'Step' to 'ID Type' to another file" Including the "ID Type" block - or not ? Thi...

1 year ago | 0

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