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Topic: Vector comparison using if
Replies: 4   Last Post: Nov 20, 2012 4:04 AM

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Nasser Abbasi

Posts: 6,064
Registered: 2/7/05
Re: Vector comparison using if
Posted: Nov 19, 2012 9:30 PM
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On 11/19/2012 7:52 PM, Rajasekhara Madhusudan Narayana Bhatla wrote:
> Hi,
> I'm sought of new using matlab. I've a situation where I've to assign a variable 2 different values based on how the values in vector
> it is something like.
> fs=1000;
> x=1:4/fs:5;
> if x<2
> Y=x.^2
> else
> Y=4;
> end.
> i.e, my Y will also be a vector whose value depends on where I x is. if x is <2
>then y is x^2 if not it is a constant.
> I'm not sure how to do this.
> i tried it with if any(x)<2 but I then i realized that it is not correct.
>since I want for all values of x<2 Y=x^2 and all values of x >2 x = 4.
> Please Help,
> Thanks,
> Sekhar.

many ways to do this. One way

fs = 1000;
x = 1:4/fs:5;
Y = 4*ones(length(x),1);
Y(x<2) = x(x<2).^2


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