I'm using the caret library in R for model generation. I want to generate an earth (aka MARS) model and I want to specify the degree parameter for this model generation. According to the documentation (page 11) the earth method supports this parameter.
I get the following error message when specifying the parameter:
> library(caret)> data(trees)> train(Volume~Girth+Height, data=trees, method='earth', degree=1)Error in { : task 1 failed - "formal argument "degree" matched by multiple actual arguments"How can I avoid this error when specifying the degree parameter?
> sessionInfo()R version 2.15.0 (2012-03-30)Platform: x86_64-pc-linux-gnu (64-bit)locale: [1] LC_CTYPE=en_GB.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_GB.UTF-8 LC_COLLATE=en_GB.UTF-8 [5] LC_MONETARY=en_GB.UTF-8 LC_MESSAGES=en_GB.UTF-8 [7] LC_PAPER=C LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C attached base packages:[1] stats graphics grDevices utils datasets methods base other attached packages: [1] earth_3.2-3 plotrix_3.4 plotmo_1.3-1 leaps_2.9 caret_5.15-023 [6] foreach_1.4.0 cluster_1.14.2 reshape_0.8.4 plyr_1.7.1 lattice_0.20-6loaded via a namespace (and not attached):[1] codetools_0.2-8 compiler_2.15.0 grid_2.15.0 iterators_1.0.6[5] tools_2.15.0 
