get.fs.len | R Documentation |
Get feature lengths for feature selection validation by classification.
get.fs.len(p,fs.len=c("power2"))
p |
Number of features in the data set. |
fs.len |
Method or numeric sequence for feature lengths. It can be a numeric vector as user-defined feature lengths, or methods:
|
The generation of feature length is used in the validation of feature subsets by classification. The feature length decide the lengths of feature subset starting from top of the full feature order list.
An descending order numeric vector of feature lengths.
The last length of feature returned is always p
.
Wanchang Lin
fs.rfe
, frank.err
, frankvali
data(abr1)
dat <- abr1$pos
## number of featres
p <- ncol(dat)
## predefined feature lengths. The returned will be descending order
## vector with the first one is p.
(vec <- get.fs.len(p, fs.len=c(1,2,3,4,5,6,7,8,9,10)))
## use all features as feature lengths
(vec.full <- get.fs.len(p, fs.len="full"))
## use "half"
(vec.half <- get.fs.len(p, fs.len="half"))
## use "power2"
(vec.power2 <- get.fs.len(p, fs.len="power2"))
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.