GetCurrencies: Get the currencies of numbers within a string.
Description
The currency of a number is defined as the character coming before the number
in the string. If nothing comes before (i.e. if the number is the first thing
in the string), the currency is the empty string, similarly the currency can
be a space, comma or any manner of thing.
GetCurrency
takes a string and returns the currency of the first number therein. It is
vectorised over string.
GetCurrencies takes a string and returns
the currencies of all of the numbers within that string. It is not
vectorised.
Usage
GetCurrencies(string)
GetCurrency(strings)
Arguments
string
A string.
strings
A character vector.
Value
GetCurrency returns a character vector.
GetCurrencies returns a data frame with one column for the
currency symbol and one for the amount.
Details
These functions do not allow for leading decimal points.