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How to get specified values in vector?

Asked by KH on 20 Jun 2013

Hi,

I need some help on this.

Lets say i have a vector of: a= [1.1 1.3 1.5 1.8 2.5 3.4 6.7 6.9 8.0 10.2 15.0 17.8 21.0 23.4]

However, i only want the values of not exceeding 10 in one of my vector, which is something like that: b= [1.1 1.3 1.5 1.8 2.5 3.4 6.7 6.9 8.0]

and another vector which has values of more than 10 in it: c= [10.2 15.0 17.8 21.0 23.4]

How do i do these?

Thank you so much.

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KH

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1 Answer

Answer by the cyclist on 20 Jun 2013
Edited by the cyclist on 20 Jun 2013
idx = a<=10;
b = a(idx);
c = a(not(idx));

2 Comments

KH on 20 Jun 2013

hi, thanks for the suggestion. actually i need to slightly modify my question.

let say my vector now is: a= [1.1 1.3 1.5 1.8 2.5 3.4 6.7 6.9 8.0 10.2 15.0 17.8 21.0 23.4 8.0 5.5],

but i still want my vector b= [1.1 1.3 1.5 1.8 2.5 3.4 6.7 6.9 8.0] while c= [10.2 15.0 17.8 21.0 23.4 8.0 5.5] ;

please note that i need the last two values in vector c to be 8.0 and 5.5, which is less than 10.0

how can i do that? appreciate your help. thanks

Iain on 20 Jun 2013

Almost the same method:

 i = find(a > 10,1);
 b = a(1:i);
 c = a((i+1):end);
the cyclist

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