Retrieve multiple values from matlab string

Question

I currently have a large single row array of chars... I also have two arrays, the first array has all the start indexes of data I would like to retrieve from the char array, the second array has all the end indexes for the data. How can I retrieve all these wanted values from my char array without using a loop?

So far I have tried doing

     chararray(1,start(:):end(:))

but this will only retrieve the first value I would like!

Cheers!

Don't you need a loop - for iter = 1:numel(start), chararray(1,start(iter):end(iter)), where iter would be the loop iterator? — Divakar
– Divakar, Commented Sep 25, 2014 at 10:51
@Divakar Hi I was hoping there would be a simpler way as this loop would be extremely large! — bdavies6086
– bdavies6086, Commented Sep 25, 2014 at 10:53
Are the intervals same for all entries of start and end? Intervals as in start(1):end(1), start(2):end(2) and so on. — Divakar
– Divakar, Commented Sep 25, 2014 at 10:54

Divakar · Accepted Answer · 2014-09-25 11:01:35Z

2

Try this -

chararray(bsxfun(@plus,start1(:)-start1(1),start1(1):end1(1)))

This would create a 2D char array where each row be the output from each iteration of your loop code.

Also, please note that I am using start1 and end1 to represent your start and end arrays respectively, so as not to create a clash with the reserved terminate scope end used by MATLAB.

answered Sep 25, 2014 at 11:01

Divakar

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