remove character within a string

code error for removing loc(character) from birds(string). loc ensure has three letters.

function [nm, couriers] = ostrichExpress(birds, loc)
ind=strfind(birds,loc);
nm=length(ind);
birds(ind:ind+2)=[];  %error
couriers=birds;
end

[KSSV]

Give one example....wfrom what string what you are trying to remove?

[Maria]

'DJI GHA MOZ DJI NER NER NER GHA ' remove 'NER'

Answer 1

[KSSV]

s1 = 'DJI GHA MOZ DJI NER NER NER GHA ' ;
s2 =  'NER' ; 

s1 = strsplit(s1) ; 
idx = ismember(s1,s2) ; % get the strings present 
s1(idx) = [] ;   % remove the strings 
s1 = strjoin(s1)

Answer 2

[Walter Roberson]

s1 = regexprep(s1, 'NER\s*', '')

This deletes all occurances of NER with following whitespace.

This particular code does not delete leading whitespace. And that means that if you happen to have

s1 = 'DJI GHA MOZ DJI GHA NER'

that the result would be

'DJI GHA MOZ DJI GHA '       %with trailing space

If you code to delete leading whitespace instead of trailing whitespace, you end up with a similar problem if the string happens to start with 'NER'.

If you code it to delete both leading and trailing whitespace then you risk joining adjacent items that are not NER.

KSSV's code does not have this difficulty of leaving in whitespace. On the other hand, KSSV's code does not preserve whitespace size, always substituting a single blank for all whitespace.

DJI   GHA MOZ  NER   GHA

would be changed to

DJI GHA MOZ GHA

It is not easy to define what the right answer "should" be when there are variable amounts of whitespace.