USING MATLAB

Create a frequency table for all the different letters where the letter frequency is the number of times the letter appears in the string, divided by the length of the string. Whitespace and non letters do not need to be counted.

The string is as follows: string = dfjk nzuvcp befne vetipgkzfe kvtyezhlvj. zk zj r kpgv fw jlsjkzklkzfe tzgyvi ze nyzty vrty cvkkvi ze kyv

The frequency table should only be of length 26, one index for each letter in the alphabet. Only lower case letters need to be considered.