i have like ten readings. i am trying to draw a x-y graph. but it gives a sharp edged graph at the connecting points. how do i smoothen it. i tried the exponential fit but it is not working. thanks, kalpesh
Smoothing data in a way that doesn't distort the underlying information can be a very non-trivial task. The first thing I would recommend is to "hit the books", actually one book in particular:
"Exploratory Data Analysis" by John W. Tukey
This book deals with data smoothing extensively with a number of different types of examples. Once you understand the principles involved, writing routines to actually do the smoothing is very easy--Plus I can provide some that I use myself.
For a copy of this book check any good engineering library, or ask a statistician friend if he has a copy of "the red book".
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Try the Savitzky-Golay Smoothing Algorithm. There are numerous sources, I found it in Numerical Recipes for C.
kaps wrote in message news:<506500000008000000A1420000email@example.com>... > i have like ten readings. i am trying to draw a x-y graph. but it > gives a sharp edged graph at the connecting points. how do i smoothen > it. i tried the exponential fit but it is not working. > thanks, > kalpesh