nacculator 0.1.2

CSV to NACC's UDS3 format converter

NACCulator

Converts a CSV data file exported from REDCap into the NACC’s UDS3 fixed-width format.

FILES

This is not exhaustive, but here is an explanation of some important files.

nacc/:

Top-level Python package for all things NACC.

nacc/redcap2nacc.py:

converts a CSV data file exported from REDCap into NACC’s UDS3 fixed-width format

nacc/uds3/blanks.py:

specialized library for “Blanking Rules”

nacc/uds3/ivp/forms.py:

UDS3 IVP forms represented as Python classes

tools/generator.py:

generates Python objects based on NACC Data Element Dictionaries in CSV

HOWTO Convert from REDCap to NACC

$ pip install nacculator $ redcap2nacc < data.csv > data.nacc

Manually:

$ PYTHONPATH=. ./nacc/redcap2nacc.py data.csv > data.nacc

Note: output is written to STDOUT; errors are written to STDERR; input can be

STDIN or the first argument passed to redcap2nacc.

HOWTO Generate New Forms

Note: executing generator.py from within tools is an important step as the

script assumes any corrected DEDs are stored under a folder in the current working directory called ‘corrected’.

Warning: read the warnings in the current ../nacc/uds3/ivp/forms.py first.

$ cd tools $ PYTHONPATH=.. ./generator.py uds3/ded/csv/ > ../nacc/uds3/ivp/forms.py $ edit ../nacc/uds3/ivp/forms