# Options Lookup¶

The options_lookup.tsv file, found in the resources folder, specifies mappings from sampled options into measure arguments. For example, if the distribution of cooling system types in HVAC System Cooling.tsv has Option=AC, SEER 13 and Option=AC, SEER 15, but you want to include a Option=AC, SEER 17 option, you would add that option as a column in HVAC System Cooling.tsv and then create a corresponding row in options_lookup.tsv. Updates to this file will allow you to avoid hitting the following types of integrity check errors:

## Could not find parameter and option¶

You do not have a row in options_lookup.tsv for a particular option that is sampled.

An example of this error is given below:

$/c/openstudio-3.5.0/bin/openstudio.exe tasks.rb integrity_check_testing ... Error executing argv: ["integrity_check_testing"] Error: ERROR: Could not find parameter 'Insulation Wall' and option 'Wood Stud, Uninsulated' in C:/OpenStudio/resstock/test/../resources/options_lookup.tsv.  ## Required argument not provided¶ For the particular option that is sampled, your corresponding measure is missing an argument value assignment. An example of this error is given below: $ /c/openstudio-3.5.0/bin/openstudio.exe tasks.rb integrity_check_testing
...
Error executing argv: ["integrity_check_testing"]
Error: ERROR: Required argument 'wall_assembly_r' not provided in C:/OpenStudio/resstock/test/../resources/options_lookup.tsv for measure 'ResStockArguments'.