Data editing > Running Quantum on UNIX and Microsoft Windows > Reading the data
 
Reading the data
Quick reference
To read the data file after a previous compile and load, type:
quantum –r data_file
More information
The datapass program reads and processes data according to the definitions in your Quantum program file. Normally, this happens as an automatic extension of the load phase, but if you have corrected errors in the data or added more data to the data file, you can rerun the datapass without recompiling and reloading your program file. To do this, type:
quantum –r data_file
The datapass reads and processes each record separately. If you requested that data should be separated into clean and dirty data files, or that it should be written out to another file, Quantum will do so during this stage. Any holecounts or frequency distributions are also created now. Finally, Quantum sets flags indicating the cells and tables in which each record is to be included.
Files created
Files created during this phase are:
clean.q
Clean data file
dirty.q
Dirty data file
hct_
Holecount output
lst_
Frequency distribution (list) output
out2
Listing of records failing write and require statements
punchout.q
Records written out by require
sum_
Sorted summary of datapass errors
See also
Running Quantum on UNIX and Microsoft Windows