How to restrict the range ?

I want to restrict the output of the arc cosine to be in the range [-1,1], but I want to know if there is built-in Matlab function for this task and if it is possible for example merge @max & @min simultaneoulsy in the function bsxfun to achieve this task.

Answer 1

[Jos (10584)]

I do not see why you need bsxfun for this. If X is your signal, this statement restricts X between -1 and 1

X = [0.5 1 2 -2 -1 -0.5 0]
OUT = min(max(X,-1),1)

You can create an (anonymous) function for this, if you need it a lot.

minmax = @(x,a,b) max(min(x,a),b) % restricts input X between a and b

[Nishantha Randunu]

anoymous function should be

minmax = @(x,a,b) min(max(x,a),b) % restricts input X between a and b

Answer 2

[Walter Roberson]

min(max(x, -1), 1)

[Susan Arnold]

What if I have two matrices which have the same size (let's say 1000 * 3), but I want for example matrix A has the same range of matrix B. What should I do to achieve this, could you please further help ?

Note: Both of these matrices have been generated randomely !!!

[Jos (10584)]

Simply replace -1 and 1 by the minimum and maximum of B

... max(A,min(B(:))) ...