This function generates a sequence of mtry values for random forests.
Usage
var_seq(p, classification = FALSE, len = 3)
Arguments
p
The number of predictors
classification
Is the outcome a factor (classification = TRUE
or numeric?)
len
The number of mtry values to generate.
Value
a numeric vector
Details
If the number of predictors is less than 500, a simple sequence of values of
length len is generated between 2 and p. For larger numbers of
predictors, the sequence is created using log2 steps.
If len = 1, the defaults from the randomForest package are
used.