VSDB-Analysis Tool: Output

The output of VSDB-Analysis is printed to the screen by default, as we saw, unless you redirect it to an output file using the -out command line option. View the output of the first VSDB-Analysis command we ran by opening the tutorial/out/vsdb_analysis/vsdb_analysis.out file using the text edior of your choice. Note the following:

• The output of the first job to simply filter the VSDB data consists of a FILTER line listing the filtering parameters applied.
• The output of the second and third jobs consist of the 3 lines each: the COL_NAME, CTC, and JOB_COMMAND lines. This is the same output that was printed to the screen for the VSDB-Analysis job run on the command line.

Close that file, and open up the following three files to examine the VSDB data over which these jobs were run:

• tutorial/out/vsdb_analysis/filter_job.vsdb
• tutorial/out/vsdb_analysis/aggr_ctc_job_1.vsdb
• tutorial/out/vsdb_analysis/aggr_ctc_job_25.vsdb

In this example, the second and third jobs read 2 CTC VSDB lines, using observation types ADPSFC and ADPUPA. So these two jobs aggregate contingency table counts across two observation types. Users are strongly encouraged to use the -dump_row job command option to verify that the analysis job was run over the intended subset of VSDB data.