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tests/test-existence_collision.R
In FeatureHashing: Creates a Model Matrix via Feature Hashing with a Formula Interface
library(FeatureHashing)
df <- data.frame(a = c("a,b,c", "a,c", "b,c", "a"))
m <- hashed.model.matrix(~ split(a, delim = ",", type = "existence") - 1, df,
hash.size = 4, signed.hash = FALSE, create.mapping = TRUE)
hash.mapping(m)
stopifnot(m@x == 1)
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FeatureHashing documentation built on Oct. 31, 2022, 1:06 a.m.
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library(FeatureHashing)
df <- data.frame(a = c("a,b,c", "a,c", "b,c", "a"))
m <- hashed.model.matrix(~ split(a, delim = ",", type = "existence") - 1, df,
hash.size = 4, signed.hash = FALSE, create.mapping = TRUE)
hash.mapping(m)
stopifnot(m@x == 1)
Try the FeatureHashing package in your browser
Any scripts or data that you put into this service are public.
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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