Returns a string x with n characters removed from the left side of the string.
rvn_substrMLeft(x, n)a string to manipulate
number of characters to remove from the left side of the string
rvn_substrRight for using n characters from the right
side of string,
rvn_substrLeft for using n characters from the left side of
string
rvn_substrMRight for removing n characters from the right side of
a string
rvn_substrMLeft("hello world",3)
#> [1] "lo world"
# returns "lo world"