get a subcell from a bigger cell

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Miguel Reina
Miguel Reina 2018-2-5
评论： Jan 2018-2-5
I have a cell of 10x9 named 'a', each index contains a string. How can i create a sub cell if i have two vectors (f,c) with the indexes that i want. e.g. imagine a 2x3 cell a and indexes f and c
a={('this'), ('is') ,('big');('he') ,('buys') ,('it')}
f=[1,1,2];
c=[1,2,3];
the result i want is b={('this'), ('is');('it'),('')}
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Miguel Reina
Miguel Reina 2018-2-5
the indexes are found following a 2x3 matrix said
b=[1 1 0;0 0 1]
in which 1 indicates the "correct" words following a criteria. so to find the indexes of those words i used
[c,f]=find(b==1);
Jan
Jan 2018-2-5
Wouldn't it be easier to apply directly:
a(b)

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回答（1 个）

Guillaume
Guillaume 2018-2-5
Use ind2sub:
a(ind2sub(size(a), f, c))
The result will be 1x3 vector not an arbitrary sized array.

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