CPD3 command summary
The internal structure of the database used by CPD3 is completely different from that used by CPD2, but many of the commands used by users are similar. In general, database commands for CPD3 begin with da., whereas the commands for CPD2 begin with data..
Complete documentation for CPD3 database commands will be published later. These pages are intended to get a new user of CPD3 started.
Documentation for all CPD3 database commands is available by using the –help argument to the command. Detailed information on command arguments is available using –help=arg, where arg is the name of the argument. For example,
da.get --help=variables
returns an explanation of the variables bareword argument (see CPD3 data structures for more information).
Data Access
- da.get - Primary command to get data from an archive.
- da.avg - Generate averaged data.
- da.export - Convert CPD3 data to an external data format.
- da.select - Selects data to get, with fine control over details
- da.where - Selects data based on conditional tests
- cpd3messagelog - Get entries from on-line message log
- da.generate.edited - Generates edited data for a station, allowing use of different editing profiles to sprcify different sets of data or methods of generating edited data.
Data Plotting
Data Manipulation
GUI Access to database
Data Passing
Database: behind the scenes
- da.import.cpd2 - converts data in CPD2 format to CPD3 format. This is called automatically by the da.* programs if they are passed a CPD2-format data stream.
- da.multiplex - merge CPD3 files
- da.multiplexer - same as da.multiplex
- da.mux - same as da.multiplex