hash.mapping: Extract mapping between hash and original values
In FeatureHashing: Creates a Model Matrix via Feature Hashing with a Formula Interface
hash.mapping R Documentation
Extract mapping between hash and original values
Description
Extract mapping between hash and original values
Usage
hash.mapping(matrix)
Arguments
matrix
Matrix returned by hashed.model.matrix function
Details
Generate a mapping between original values and hashes.
Option create.mapping = T needs to be used in function hashed.model.matrix.
Original values are stores in the names of the vector.
Value
a named numeric vector
Author(s)
Michael Benesty
Examples
data(ipinyou)
m <- hashed.model.matrix(~., ipinyou.train, 2^10, create.mapping = TRUE)
mapping <- hash.mapping(m)
FeatureHashing documentation built on May 29, 2024, 8:19 a.m.
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| hash.mapping | R Documentation |
Extract mapping between hash and original values
Description
Extract mapping between hash and original values
Usage
hash.mapping(matrix)
Arguments
matrix |
Matrix returned by |
Details
Generate a mapping between original values and hashes.
Option create.mapping = T needs to be used in function hashed.model.matrix.
Original values are stores in the names of the vector.
Value
a named numeric vector
Author(s)
Michael Benesty
Examples
data(ipinyou)
m <- hashed.model.matrix(~., ipinyou.train, 2^10, create.mapping = TRUE)
mapping <- hash.mapping(m)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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