Extract last character in table variable as new table variable

Hi,

I'm trying to extract the last character of a variable in a table (tAll.Sym) to a new varaible, but cant figure out the syntax. I was able to get the first two characters to a new variable tAll.Product using:

tAll.Product = strtrim(extractBetween(tAll.Sym,1,2));

but I cant determine how to extract only the last character, it seems that you cannot use 'end', and my "Sym" variables are not all the same length so i cannot hard code 10 as the last.

Obviously I can create a loop and iterate over the whole table, but i thought i should be able to do it without a loop like the code above. Thanks for any help in advance!

Answer 1

[Walter Roberson]

Last = @(v) v(end);
tAll.Product = arrayfun(@(S) Last(char(S)), tAll.Sym);

This uses a hidden loop instead of an explicit loop.

[Matt Glowacki]

That works, thanks!

Answer 2

[Peter Perkins]

As Walter showed, this is more of a "string" question than a "table" question. In MATLAB versions since (IIRC) R2016b-ish, try this alternative to arrayfun:

>> s = ["ax"; "bby"; "cccz"]
s = 
  3×1 string array
    "ax"
    "bby"
    "cccz"
>> extractAfter(s,strlength(s)-1)
ans = 
  3×1 string array
    "x"
    "y"
    "z"