If then else function on calculation manager

[DDM57]

Hello everyone,

I try to use the "if "function on calculation manager under the "calculation script " but it doesn't work. I have the error message "Expected statement". 

I have attached the print screen .Someone could help me?

[gsklyr]

Is W_F_ratio is a channel then it needs to be "W_F_ratio.Values(iLoop) < 0"

[DDM57]

Hello,
you right, now it's working.
Thanks a lot