if with 2 conditions

i used this statement conditions before it worked well,

but this time Matlab says it work with logic condition only:

how to recover ?

thanks

Answer 1

[Image Analyst]

What does this say

whos Ree

It's probably a vector, not a scalar.

[james sinos]

yes you have write , i must make a loop i forgot that .

i hope for a scalar it does work.

thanks

[Image Analyst]

You might want to use any or all():

if any(Ree > 100000 & Ree < 1000000) % Check if any of them is in range.
if all(Ree > 100000 & Ree < 1000000)  % Checks that ALL of them are in range.