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Results tagged with r
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user 8501
R is a free, open-source programming language and software environment for statistical computing, bioinformatics, and graphics.
6
votes
Boruta feature selection in R with custom importance (xgboost feature importance)
Boruta is by universal reputation dog-slow and not very good. Boruta runs take many hours or days. VIF feature-selection algorithm is not objective, anyway.
You can program your own feature-selection …
- 331
1
vote
Accepted
Why is this Binning by Median code wrong?
The error is due to the well-known R gotcha that the : (colon operator, which calls seq()) takes higher precedence than arithmetic. … 48.9 48.9 48.9
[1] 65.25 65.25 65.25 65.25
[1] 79.25 79.25 79.25 79.25
But in fact you can replace even that with:
split(a, ceiling(seq_along(a)/binsize))
as per the "Split a vector into chunks in R" …
- 331