Chroma::Reader Gem

Chroma is a PDF and CSV parser for chromatography batch reports, with some input parameters that allows flexibility in the analysis of the input.

Header discovery, row discovery, column exclusion, column reordering.

>> REPORT START 2019-01-11 16:41
Sample_23 781.674 507.096 662.184 678.83 109.636 581.873 500.424 651.328 596.718 64.142 122.673
Sample_35 683.892 317.118 359.568 13.52 735.353 218.804 381.964 625.032 781.882 685.874 856.873
Sample_37 341.68 780.786 679.52 843.436 613.123 729.566 94.02 454.303 584.151 152.453 230.487
<< REPORT END 2019-01-11 16:43

Input options for the Chroma::Reader constructor

• input: File or file_path of the report to read

PDF options

• header_regex: RE to identify the header row
• header_column_regex: RE to identify the header column separator (overwrites column_regex)
• header_skip_column: array of indexes of columns to ignore (overwrites skip_column)
• header_append: array of elements to append to the header
• header_prepend: array of elements to prepend to the header
• header_sort: array of strings to specify the order of columns
• row_regex: RE to identify data rows
• column_regex: RE to identify the column separator
• skip_column: array of indexes of columns to ignore
• should_scrub_re: RE to remove a anchor from data rows
• reject_sample_regex: RE to reject sample-id

CSV options

• header_replace: header for the mapping of the CSV file is given, existing is removed
• header_provide: header for the mapping of the CSV file is given