Clean column names and factor levels in-place

Clean column names and factor levels in-place

Usage

dt_set_clean_all(x, prefix_digits = NA)

Arguments

x

data.table: Input data.table. Will be modified in-place, if needed.

prefix_digits

Character: prefix to add to names beginning with a digit. Set to NA to skip

Value

Nothing, modifies x in-place.

Author

EDG

Examples

library(data.table)
x <- as.data.table(iris)
levels(x[["Species"]]) <- c("setosa:iris", "versicolor$iris", "virginica iris")
names(x)
#> [1] "Sepal.Length" "Sepal.Width"  "Petal.Length" "Petal.Width"  "Species"     
levels(x[["Species"]])
#> [1] "setosa:iris"     "versicolor$iris" "virginica iris" 
# ***in-place*** operation means no assignment is needed
dt_set_clean_all(x)
names(x)
#> [1] "Sepal_Length" "Sepal_Width"  "Petal_Length" "Petal_Width"  "Species"     
levels(x[["Species"]])
#> [1] "setosa_iris"     "versicolor_iris" "virginica_iris"