Update variable according to new solution in a while loop

Hi World,

The value of "i" is already given in an earlier part of the code, how do I ensure that the value of 'i' updates every time the 'total' updates.

I am really struggling with this, issue is as follows, the variable 'i' is given by the following code:

if r == 0
i = total - 1;
end
if r > 0
i = total + 9;
end

A while loop then starts which updates the total given below:

FlagP = DecisionTable(i,j);
while FlagP == 1
total = total + x(randi(length(x)))
%------------------------------------%
if r == 0
i = total + x(randi(length(x)));
else i = total + 8;
end

In this while loop the total changes, so the 'i' value needs to change in order for the read to be correct in the decision table.

Can anybody tell me how I can ensure that the value for 'i' updates everytime the total does?

Your help would be so helpful.

Steven Strange

[Rik]

If i is a function of r and total, why not make that explicit? Then you can call that function every time you need it and the most up to date values will be used.

[Steven Strange]

hi, i am quite new to matlab, how would i go about doing that?

[Rik]

Did you do a Matlab tutorial? That should have taught you how to do it.

function i=myfun(total,r)
if r == 0
i = total - 1;
elseif r > 0
i = total + 9;
else
i= %r<0 (you could throw an error here as well) 
end

Then in your code you can call this function whenever you need the value of i.

[Steven Strange]

thank you Rik, i wil try this and see if it works, Steven Strange.