execution of for loops on specific numbers

k=[3 8 10 12]

i wanted to execute above mentioned indexes in for loop something like this

for i=[3 8 10 12]
    if i==3
        do stuff
    end
    if i==10 
        do stuff
        .
        .
        .
    if i==12
         do stuff
    end
 end

i don't know vector k elements before hand.

[Michael Haderlein]

I don't fully understand the question. Something like

k=[3 8 10 12];

for cnt=k
 if k==k(1)
  %do something 1
 elseif k==k(2)
  %do something 2
 elseif k==k(3)
  %do something 3
 elseif k==k(4)
  %do something 4
 end
end

is the same as

do something 1
do something 2
do something 3
do something 4

which is obviously a bit shorter. Could you please show what exactly you want?

[Guillaume]

@Michael, yes it's the same for a hardcoded k, but if k is an input to the function, then it's not:

k = randi(3, 1, 5);
for action = k
   switch action
      case 1
          disp('do action 1');
      case 2
          disp('do action 2');
      case 3
          disp('do action 3');
   end
end

Like you though, I've no idea what Raghavendra is asking.

[Purushottama Rao]

i think he has already got the answer through other post.