Why is my variable undefined?

Could someone tell me why 'g' is undefined?

Answer 1

[Walter Roberson]

You only define g if age >= 8.

Perhaps you want an "end" after you assign a=0 after your age test.

[Ben Nelson]

Thanks!

Answer 2

[Rik]

Not all options for your if-structure will result in defining g

if age<1
    a=.4;
else
    if (age>=1) && (age<3)
        a=.6;
    elseif (age>=3) && (age<5)
        a=.7;
    elseif (age>=5) && (age<10)
        a=.5;
    else
        %only here g will be defined

[Ben Nelson]

Thanks!