if this AND that then...

How do I say something like if value1 = 1 and value2 = 1 then... I'm trying to say that is something is a color and there is an arrow in a particular location then it will change the WaitSecs(value). This is what I have so far, but I'm not sure if that is saying what I intend it to.

if colour1 = c1
      if tri1 = downtri
       (keyCode(1,100)) == 1;                    %left
      Screen('FillRect',window,[0 0 0])
      Screen('Flip',window)
      WaitSecs(tar);
elseif...

Thanks, you guys make my life WAY easier.

[Jan]

(keyCode(1,100)) == 1; This is a comparison between the 100th element of a vector and 1. The output of the result is suppressed. Not really useful.

Answer 1

[Image Analyst]

if colour1 == c1 && tri1 == downtri

      (keyCode(1,100)) == 1;  %left
      Screen('FillRect',window,[0 0 0])
      Screen('Flip',window)
      WaitSecs(tar);

[Brett]

I get an error that says "operators must be convertible to logical scalar values." Any idea how to fix it?

[Image Analyst]

One of those terms must be an array, not a single scalar number. Fix that, or else use any() or all().

[Brett]

I changed it into scalar values, now it works. :)

if q1tri == 1 && q1col == 1 && keyCode(1,98) == 1       %down          
      Screen('FillRect',window,[0 0 0])
      Screen('Flip',window)
      WaitSecs(tar);

[Image Analyst]

OK great - go ahead and mark this question as "Answered" then.