Dear R list,
I came across dgCMatrix. I believe this class is associated with sparse
matrix.
I see there are 8 attributes to train$data, I am confused why are there so
many, some are vectors, what do they do?
Here's the R code:
library(xgboost)
data(agaricus.train, package='xgboost')
data(agaricus.test, package='xgboost')
train <- agaricus.train
test <- agaricus.test
attributes(train$data)
Where is the data, is it in $p, $i, or $x?
Thank you very much!
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
