Description Usage Arguments Details Value Author(s) References See Also Examples
Normalize a vector or matrix to zero mean and unit length columns
1 | normalize(X)
|
X |
a matrix with the training data with observations down the rows and variables in the columns. |
The function can e.g. be used for the training data in sda or smda.
Returns a list with the following attributes:
Xc |
The normalized data. |
mx |
Mean of columns of X. |
vx |
Length of columns of X. |
Id |
Logical vector indicating which variables are included in X. If some of the columns have zero length they are omitted. |
Line Clemmensen
Clemmensen, L., Hastie, T. and Ersboell, K. (2008) "Sparse discriminant analysis", Technical report, IMM, Technical University of Denmark
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