| as_numeric {rccmisc} | R Documentation |
as_numeric is essentially a wrapper to as.numeric except that objects of class factor are first coerced to character and then to numeric.
is_numeric test if x is "somehow numeric" (see examples).
as_numeric(x) is_numeric(x)
x |
object to be coerced or tested
(and return a logical vector of the same length) or should it test the whole
vector as one object and return a logical vector of length one. ( |
df <- data.frame(v = c("46513", "45"))
class(df$v) # factor
# Note that
as.numeric(df$v) # 2 1
# but
as_numeric(df$v) # 46513 45
is_numeric(1) # TRUE
is_numeric("1") # TRUE
is_numeric(as.factor(1)) # TRUE
is_numeric(as.factor("khb")) # FALSE