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54.339
2013 Apr 22
7
Multiple lon lat points in the map with ggplot2
Hello R users,
For the last few days I am struggling with the following task:
my data.frame:
A1 A2 A3 B1 B2
B3
58.81 53.292 54.501 13.013 17.39 19.407 56.02 56.251 54.033 20.099 13.15
10.411 55.376 53.099 57.625 13.396 21.031 13.22 58.584 53.194 54.218
13.038 16.854 19.289 55.7 55.921 53.847 19.942 13.153 9.828 55.093 52.934
2011 May 05
1
Question about error of "non-numeric argument to binary operator"
I have been trying to do a nls model and gives me the error of a nonnumeric
argument
table(file="c:/tt2.txt",header=T)
> fit.model <- nls(TT~60*(1+alpha*(v/c)^beta),data=tt2, start=list(alpha=1,
beta=3, v=1000))
Error in v/c : non-numeric argument to binary operator
> is.numeric(tt2)
[1] FALSE
> is.character(tt2)
[1] FALSE
> as.numeric(tt2)
Error: (list)