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Re: Vector comparison using if
Posted:
Nov 19, 2012 9:30 PM


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 
Nasser



