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#1 2005-09-25 14:31:28
- Atled
- Novice
Offline
Exponential curve fit
Anyone know how to do regression analysis of a shifted exponential curve.
here is the data
1 0.997706596
2 0.243081214
3 0.079426264
4 0.03319443
5 0.016202707
6 0.00969521
7 0.007108719
8 0.004852038
9 0.003415406
10 0.002462571
11 0.001977777
the equation should look like a^((-x+1)/b) i think.
I cant seem to do it with my calculator it doesn't handle the shift.
Thanks
#2 2005-09-25 22:45:17
- kylekatarn
- Power Member
Offline
Re: Exponential curve fit
the general form should be
(bx+c)
k.a
(don't know for shure, I never actually used this)
try using EXCEL to plot the data and them apply a regresison line (type exponential)