How can I use an if statement to compare an input in a function script?

How can I get this If statement to work? why doesn't it work in the first place?

Answer 1

[OCDER]

Your cell_num_mem_1 was never defined before the if statement. What is the value of this variable, or is it a function that returns a value?

p = 1;
cell_num_mem_1 = ???? %define a value here
if p == cell_num_mem_1  
   disp('if statement worked')
end

[Jane Akintoye]

"cell_nuc_mem_1" is defined in the command window. Is that not enough?

[Jane Akintoye]

oh nvm I see now, the all variables used in a function have to be defined in the function, thanks