Top "R-factor" questions

The factor is a data type in the R language, used to encode categorical or enumerated data.

R how to change one of the level to NA

I have a data set and one of its column has factor levels "a" "b" "c" "NotPerformed". How can I …

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r r-factor
Can we get factor matrices in R?

It seems not possible to get matrices of factor in R. Is it true? If yes, why? If not, how …

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r matrix vector integer r-factor
How to read numeric values as factors in R?

I have a data frame A which has numeric column like: zip code 00601 00602 00607 and so on. If I read this …

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r csv r-factor
how to convert numeric column to factor in R

I'm trying to use the softImpute command (from the softImpute package) for filling in missing values, and I'm trying to …

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r numeric r-factor
Why does as.factor return a character when used inside apply?

I want to convert variables into factors using apply(): a <- data.frame(x1 = rnorm(100), x2 = sample(c("a","…

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r apply r-factor
Replacing numbers within a range with a factor

Given a dataframe column which is a series of integers (age), I want to convert ranges of integers into ordinal …

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r data-processing r-factor
Updating factor levels while filtering R data.frames

I have a data.frame similar to below. I pre-process it by deleting rows that I am not interested in. …

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r dataframe r-factor