how I do it. the function is called a string is passes a numbr

how could I do this one

looks like

functionname('hello')
ans= hello1
functionname('john')
ans= john2
...

many thanks

[dpb]

Which number, in particular? Any one, random, user-specified, sequential since last invocation as shown above (requires some extra logic to keep track of that and over what population if so)...???

So many questions, so little known... :)

s=sprintf('%s%d',str,randi(1000);

might give you some ideas, however...

Answer 1

[Stephen23]

function out = myfun(inp)
persistent cnt
if nargin==0 || isempty(cnt)
	cnt = 0;
end
cnt = cnt+1;
assert(cnt<=5,'You already have five words')
out = sprintf('%s%d',inp,cnt);
end

And tested:

>> myfun('anna')
ans = anna1
>> myfun('bob')
ans = bob2
>> myfun('cathy')
ans = cathy3
>> myfun('david')
ans = david4
>> myfun('evalyn')
ans = evalyn5
>> myfun('frog')
error: You already have five words

[Dezdi]

thank you

Is there any way to write message here not just post?

Answer 2

[Luna]

Hello Dezdi,

You can do it by first collecting your inputs in a cell array and then call your function in a for loop with 5 elements.

inputStr = {'John','Mary','Kayle','Adam','David'};
for i = 1:5
  out =  myFunc(inputStr,i)
end

function outputStr = myFunc(inputStr,i)
  outputStr = [inputStr{i}, sprintf('%d',i)];
end

[Dezdi]

thank you

Answer 3

[Preethi]

hi,

check this

function test_preethi(str)
persistent i

if isempty(i)
    i=1;
else
    if i <=5
       sprintf('%s%d',str,i)
       i=i+1 ;
    else
        sprintf('limit reached')
    end
end

[Stephen23]

The question requests "...and returns the resulting string". Your code does not return anything.

[Dezdi]

thank you it works for me sorry I am new here can't accept all of you answers.

[dpb]

This particular function only "works" in that it creates the string internal to the function but you can't get at the result.

The use of persistent is good in saving the previous value, unfortunately the function has no mechanism by which the variable can be reset/re-initialized so without external intervention once the sequence is full, there's no going forward...details, details! :)