Remove a specific string from a cell matrix
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Hello,
I have a question. I have a cell matrix 200x1 with the following format.
Temperature 10
Temperature 10
Temperature 25
Temperature 30
........................
Temperature 150.
I would like to use a command which will "remove" the string "Temperature".
Does anybody knows which command should I use to make it?
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Accepted Answer
Adam Danz
on 3 Oct 2019
Edited: Adam Danz
on 3 Oct 2019
Option 1: strrep() to replace 'Temperature ' with empty
C = {'Temperature 10';'Temperature 10';'Temperature 25';'Temperature 30'};
Ctrim = strrep(C,'Temperature ','') %cell array of chars containing only the numbers
Cnum = str2double(Ctrim); %vector of the numbers of class double.
Option 2: regexp() to extract the numeric characters
Ctrim = regexp(C,'\d+','match','once');
Cnum = ... %see above
Option 1 is faster.
2 Comments
Adam Danz
on 3 Oct 2019
Glad I could help!
BTW, the first solution, using strrep, is ~3.6 x faster (comparing median speeds using tic/toc across 100k iterations, each).
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