Displaying 6 results from an estimated 6 matches for "creategrids".
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creategrid
2013 Feb 12
1
caret: Errors with createGrid for rf (randomForest)
When I try to crate a grid of parameters for training with caret I get
various errors:
------------------------------------------------------------
> my_grid <- createGrid("rf")
Error in if (p <= len) { : argument is of length zero
> my_grid <- createGrid("rf", 4)
Error in if (p <= len) { : argument is of length zero
> my_grid <-
2013 Feb 13
2
CARET: Any way to access other tuning parameters?
The documentation for caret::train shows a list of parameters that one can
tune for each method classification/regression method. For example, for
the method randomForest one can tune mtry in the call to train. But the
function call to train random forests in the original package has many
other parameters, e.g. sampsize, maxnodes, etc.
Is there **any** way to access these parameters using train
2013 Mar 06
1
CARET and NNET fail to train a model when the input is high dimensional
The following code fails to train a nnet model in a random dataset using
caret:
nR <- 700
nCol <- 2000
myCtrl <- trainControl(method="cv", number=3, preProcOptions=NULL,
classProbs = TRUE, summaryFunction = twoClassSummary)
trX <- data.frame(replicate(nR, rnorm(nCol)))
trY <- runif(1)*trX[,1]*trX[,2]^2+runif(1)*trX[,3]/trX[,4]
trY <-
2007 Mar 20
0
[903] branches/wxruby2/wxwidgets_282/samples: Added #!/usr/bin/env ruby to the grid sample.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2007 Feb 14
0
[875] trunk/wxruby2/samples: Add expanded grid sample
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2004 Dec 09
6
Scrolling to the bottom of a Grid
Hi,
Thanks to the newly added event handlers for Wx::Grid in the 0.6.0
release, I can now provide a much slicker intreface to my "data widgets"
which heavily rely on that control.
However, I haven''t quite figured out how to programmatically scroll to
the last row of a populated grid (actually, the first empty row). So
say that I have a grid with 200 rows only 20 of which