How to grab Numbers within a string

Hi, I'll try to be as concise as possible.

So I have a document full of files, where the filename denotes the coordinates of the dataset.

As an example, one file is called "Dx(005_50);Dy(095_25)" so it is 5.5mm on the x-axis and 95.25mm on the y axis. I have Matlab reading in the files and plotting the data in the correct coordinates when the naming convention used to just be "005_50_095_25" as I just used regexp and 'split' to seperate the numbers into different matrix positions.

I basically want to have Matlab do the same thing with the new naming conventions although I haven't had loads of experience with regexp and have tried using 'tokens' to no avail.

I basically want a result of;

ans = [005 , 50, 095, 25]

if that makes sense.

Cheers.

Answer 1

[Adam Danz]

There are two different outputs. The first preserves the leading 0s by keeping the numbers in string format. The second puts the numbers into numerical format.

s = 'Dx(005_50);Dy(095_25)'; 

numStr = regexp(s, '\d+', 'match'); 
numStr =
  1×4 cell array
    {'005'}    {'50'}    {'095'}    {'25'}
    
    
numVec = str2double(numStr); 
numVec =
     5    50    95    25

[Ryan Shone]

This has given me what I wanted and taken it a step further, really appreciate the quick response, didn't think to use 'match' rather than 'split' cannot thank you enough!

[Adam Danz]

Glad it worked out!