regression not working

Rune Klarskov Jensen shared this problem 5 years ago
Not a Problem

Input field: h(x)=b*a^x

I created list og points list1 from the spread sheets:

0.00000000000000 6.60000000000001

1.00000000000000 9.10000000000001

2.00000000000000 16.0000000000000

3.00000000000000 22.0000000000000

4.00000000000000 40.0000000000000

5.00000000000000 70.0000000000000

6.00000000000000 100.000000000000

7.00000000000000 137.000000000000

Fit[list1, h(x)]

yields these parameters: 8.2176*1.5018^x

But I should have gotten


The last result I got with the command: FitGrowth[list1]

And I allso got the same result using another program, Maple and Nspire.

Hope you have som feedback.

Best regards,

Rune Klarskov Jensen

Comments (2)


That is that the last result was confirmed from the other programs :)


There are two ways to get the best fit for exponential functions: using FitExp or using Fit. Please see for details.

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