One-to-one correspondence anonymous function

I was wondering if can make an injective (one-to-one correspondence) anonymous function to do this;

 if the input was one member from P then function convert it to correspondence member in N, for example if input is x=10 out put will be y=5, x=105-->y=4 and ...

P=[10;100;105;700;943]

N=[5;8;4;11;20]

Thanks in advance, Arash

[Walter Roberson]

are your x values always integer? if not there can be a problem.

http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F

Answer 1

[Azzi Abdelmalek]

P=[10;100;105;700;700];
N=[5;8;4;11;20];
f=@(x) N(find(P==x));

f(700)

[Walter Roberson]

The find() is not needed, P==x can be used directly.

[Arash]

Thank you Azzi, you helped a lot.

Answer 2

[Walter Roberson]

@(x) N(ismember(x, P))

[Azzi Abdelmalek]

Maybe it's

ismember(P,x)

[Walter Roberson]

Good point.