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RE: Data Extraction from List {{x1,y1}..{xn,yn}}where ##<x<##



Use Interpolation[data,InterpolationOrder->1]

Hope this helps,


----------------------------------------------- Jean-Marie THOMAS
Conseil et Audit en Ingenierie de Calcul www.cybercable.tm.fr/~jmthomas
------------------------------------------------


-----Message d'origine-----
De:	charles [SMTP:koehlerc@execpc.com] Date:	dimanche 22 mars 1998 00:35
A:	mathgroup@smc.vnet.net
Objet:	[mg11694] Data Extraction from List {{x1,y1}..{xn,yn}}where
##<x<##

Hello,

How might I extract a range of {x,y}from a list of data, so that I can
perform a linear fit between the point that meet the criterion of being
bewteen x_n and x_m.

In other words, fit a line to a part of the data that has #1<x<#2.

I have attempted to use the Select function but it requires me to
Flatten the data list first? And it results in giving me a list of just
the x values not the {x,y} pairs.

Any help is greatly appreciated.

Thanks,

Charles Koehler




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