Thomas Hoffmann [EMAIL PROTECTED] writes:
Dear R-helpers, dear Andrew
Andrew C. Ward schrieb:
Dear Thomas,
I wonder if you have any NAs in xy$x or xy$y.
The Dataframe looks like the following:
xy
x y
1 3.0 121.50951
2 2.0 30.61258
3 4.0 323.14837
4 8.2
Dear R-Helpers,
I try to fit my x and y vector-data with a power law using a the
following command:
test - nls(y ~ A*x^B, xy, start=list(A=0.5,B=0.8))
and I get the error message:
Error in numericDeriv(form[[3]], names(ind), env) :
Missing value or an Infinity produced when evaluating
Dear R-helpers, dear Andrew
Andrew C. Ward schrieb:
Dear Thomas,
I wonder if you have any NAs in xy$x or xy$y.
The Dataframe looks like the following:
xy
x y
1 3.0 121.50951
2 2.0 30.61258
3 4.0 323.14837
4 8.2 3709.92471
For testing reasons I calculated y by:
y - 2.9 x^3.4
