MATLAB: Extracting non-alphabets from a string

string parsing

I have a string of the form Str='G02X56.32Y13.05Z4.5F0.1'

I want to extract x=56.32, Y=13.05 etc. The orders of X and Y can be interchanged. How do I extract non-alphabetical characters in between two alphabets?

I use N = cellfun(@str2double,regexp(Str,'(?<=X)-*\d+','match')) and I get only 56 instead of 56.32. Please help me! Thanks!

Best Answer

Str='G02X56.32Y13.05Z4.5F0.1'
str2double(regexp(Str,'\d+(\.\d+)?','match'))

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MATLAB: How to divide a string into substrings

Assuming your using version higher than 2016b of MATLAB:

Str='A':'F';
Z=repmat(Str,strlength(Str)-1,1);
f = @(x)regexp(""+x,'\w*','match');
ZZ=[f(tril(Z)),f(triu(Z,1))];
S=cell2struct(ZZ,{'First_Part','Second_Part'},2)

For older versions:

Str='ABCDEF';
Z=repmat(Str,strlength(Str)-1,1);
f = @(x)regexp(cellstr(x),'\w*','match');
ZZ=[f(tril(Z)),f(triu(Z,1))];
S=cell2struct(reshape(ZZ,[],2),{'First_Part','Second_Part'},2)

MATLAB: Exclude Digits from String using Regexp in MATLAB

regexp(str,'[^\d_\.]*','match')

regexp(str,'[a-zA-Z]*','match')

Best Answer

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MATLAB: How to divide a string into substrings

MATLAB: Exclude Digits from String using Regexp in MATLAB

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