CODEWITHSUNDEEP
arraysstringmatlab
Janska
Janska

Reputation: 41

String to array in MATLAB

I'm trying to convert an input string "[f1 f2]", where both f1 and f2 are integers, to an array of two integers [f1 f2]. How can I do this?

Upvotes: 0

Views: 287

Answers (3)

Wolfie
Wolfie

Reputation: 30047

You can just use str2num:

f = str2num( "[123 456]" )
% f = [123, 456]

Upvotes: 1

Janska
Janska

Reputation: 41

I have found a way by using sscanf:

f = sscanf(s, "[%d %d]", [1 2]);

where s is the array-like string and f the new array of integers.

Upvotes: 2

Adriaan
Adriaan

Reputation: 18177

You can use indexing together with strsplit()

my_str = "[32 523]";
split_str = strsplit(my_str, ' ');  % split on the whitespace
% The first cell contains "[32" the second "523]"
my_array = [str2num(split_str{1}(2:end)) str2num(split_str{1}(1:end-1))]
my_array = 
           32  523

When you have more numbers in your string array, you can lift out the first and last elements of split_str out separately (because of the square brackets) and loop/cellfun() over the other entries with str2num.

Upvotes: 0

Related Questions