Re: Numeric, vectorization

2006-05-01 Thread David Isaac
"RonnyM" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > e.g. y = [ 1, 2, 3, 4, 5, 6 ,7 ,8, 9 ] > ybar = [ 1, (1 + 3)*.5,(2 + 4)*.5,(3 + 5)*.5,..., (n-1 + n+1)*.5 ], n = > 1,...len(y) -1 > How do I make a vectorized version of this, I will prefer not to > utilize Map or similar funct

Numeric, vectorization

2006-05-01 Thread RonnyM
Hello. I want to vectorize this operation, which below is implemented as a for-loop: def smoothing_loop( y ): #y is an array with noisy values ybar = [] ybar.append( y[0] ) #Smoothing with a loop length = size( y ) for i in range( 1, length -1 ): ybar.append( .5 *