I'm new to this site as well as to coding so the question might seem trivial but any help would be great (please don't just answer the problem if possible).
I'm trying to write a function where a string of letter is converted to the amount of lower case (loops and conditional are not allowed). My attempt so far is:
function countLowerCase
string = input('Please enter a string: ');
Lowercase = 'string' > 96 & 'string' <123;
sum(Lowercase)
Thanks in advance.
Firstly, what's the difference between string and 'string'? One is a variable, the other is a constant string containing 5 lowercase characters. Now why does the function always return 5? Wait, it doesn't return anything because it has no output variable ;)
Mistakes aside, that's a perfectly valid approach assuming we're dealing with purely 7-bit ASCII characters so that "lowercase" implies a single contiguous range. One helpful tip to make the comparisons clearer is to use the characters themselves:
(spoilers)
Lowercase = (string >= 'a') & (string <= 'z');
More generally, since Matlab's handling of non-ASCII characters is locale-specific, in real code (rather than programming exercises) it would be inadvisable to do anything other than let the built-in language methods handle it:
sum(string == lower(string));orsum(isstrprop(string, 'lower'));
You almost have it:
function countLowerCase
string = input('Please enter a string: ','s'); %// add 's' to get a string
Lowercase = string > 96 & string <123; %// remove quotation marks
sum(Lowercase)
lower()? It would be even simpler if so.