Is it possible to Access to an external file from openlab via CC? For exmple I want to read a specified line from a plain text file and use the value in a calculation or put that into the report....
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I am not sure if this fits with what you are trying to do, but you can pull information from a Constants file into the Custom Calculator.
Does it work only at peakorgroup level? I need to read random stuffs for the whole sequence not only for specified compounds. (eg an item from HPLC column list based on a number from a CC at the sequence table)
Yes, it does look like the constants file can only be used to define constants for compounds that are defined in the processing method. Unfortunately, this is the only method that I am aware of that allows the Custom Calculator to pull information from an external file.
Retrieving data ...