How to calculate absolute value of channel in python script?

[blume]

I want to calculate the absolute value of an channel and save the result in another channel.

But this code as described in the documentation does not work:

dd.Calculate("Ch(""Group3/Result"")= Abs(Ch(""Group1/Input""))") 

 But the same code works as .VBS Script:

Call Calculate("Ch(""Group3/Result"")= Abs(Ch(""Group1/Input""))")

 How can I achieve the same behaviour in Python?

Thanks for your help!

[Walter_Rick · Accepted solution]

Hi blume,

The problem is the double quotation marks

This here will work:

dd.ChnCalculate('Ch("Group1/Result")= Abs(Ch("Group1/Input"))') 

Greetings

Walter

[blume]

Thank you very much!

[blume]

Is it possible to do this calculation in a for loop?

For example:

for j in range(2, 5):
    dd.ChnCalculate('Ch("Group1/Result")= Abs(Ch("[1]/[j]"))')

Greetings

blume

[Walter_Rick]

You can try this:

for j in range(1, 5):
    dd.ChnCalculate('Ch("Group1/Result' + dd.str(j) + '")= Abs(Ch("[1]/[' + dd.str(j) + ']"))')

Greetings

Walter