to.numeric | R Documentation |
Loops through columsn in dataframe and coerces them to type "numeric"
.
to.numeric(df, id = NULL)
df |
a matrix or dataframe. |
id |
a vector specifying the columns (by name or index) to be converted. The default will convert all columns. |
Coercion consists of as.numeric(as.character(x))
.
A dataframe
Jason Grafmiller
as.numeric
, is.numeric
, to.factor
df <- iris summary(df) df[2:3] <- lapply(df[2:3], as.factor) summary(df) df <- to.numeric(df, 2:3) # or alternatively # df <- to.numeric(df, c("Sepal.Width", "Petal.Length")) summary(df)
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