Stopping a for loop when certain values have been reached
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Ben Hatrick
am 16 Jan. 2022
Bearbeitet: Torsten
am 17 Jan. 2022
I am running a for loop at want it to finish when a given number of values have all occured at least once. The ouputs of the for loop range from 1-9 (intagers) and I am saving the values into an array. I want to find how many iterations it takes for every number in this range to have occured at least once but am unsure how to code this. Any ideas would be greatly apprectiated.
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Voss
am 16 Jan. 2022
Bearbeitet: Voss
am 16 Jan. 2022
values = [];
n_tries = 1000;
for i = 1:n_tries
values(i) = randi(9);
if all(ismember(1:9,values))
break
end
end
display(i)
display(values)
It's probably better to use a while loop, so you don't have to set a maximum number of iterations (n_tries):
values = [];
i = 0;
while ~all(ismember(1:9,values))
i = i+1;
values(i) = randi(9);
end
display(i)
display(values)
4 Kommentare
Torsten
am 16 Jan. 2022
Theoretical result is
9*(1+1/2+1/3+1/4+1/5+1/6+1/7+1/8+1/9) = 25.46
Not so far apart.
Torsten
am 17 Jan. 2022
Bearbeitet: Torsten
am 17 Jan. 2022
@Ben Hatrick Answer moved here:
This is a massive help, thanks so much!
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