modelling master equation- Need help

Forum|Forum|14 years ago
April 13, 2012
10 replies
3978 views

Hi ! Need some help on modelling stuff

Say I have two equations with simple polynomial form

Y1 = a1 X^2 + b1X +C1 at 50deg C

Y2 = a2 X^2 + b2X +C2 at 100deg C

I need to model a master equation that can predict any equation between 50C and 100C

Say what for example what will be the new equation at 55C based on above two equations. That means we need to predict any equation( at specified temperature) with these two equations as boundary conditions.

Any suggestions ?

Other

Best answer by wayne

As Mike suggested, you can interpolate (only linear though, unless you have some other criteria)

M

MikeArmstrong

1-Visitor

Could you not use pspline and interpolate between?

Mike

W

wayne

Answer

12-Amethyst

As Mike suggested, you can interpolate (only linear though, unless you have some other criteria)

P

ptc-2676882

Author

5-Regular Member

Thanks Wayne, the approach what you have presented is quite helpful.

Cheers

F

Fred_Kohlhepp

23-Emerald I

yes you can

1_master-xmcd.zip

R

RichardJ

19-Tanzanite

You guys beat me to it. The only possibility is linear interpolation, but I would do the interpolation in K, not C. There's no way to know whether it's actually linear in eoither unit, but I would argue that if it's linear at all then it's more ilkely to be linear in K.

F

Fred_Kohlhepp

23-Emerald I

Whether it's K, C, F, or R; it's fifty units wide. the "linterp" function does slope and intercept. I expect (haven't checked) that the linear interpolation would deliver the same results.