I have a data.frame with 2 columns of strings. In the first column, I want to make sure that for each observation, the first character of string is a letter or a number. For example, if it is "* BNY Mellon Cash Reserve", I need to change it into "BNY Mellon Cash Reserve", no space is allowed in the first character.
The second column contains strings of numbers, but some are with parenthesis and other non-number stuff, and I want to only keep the numbers, so I can convert it to numeric values in the future.