Getting started¶
This section gives a tutorial introduction to PyDV. A sample session is run which highlights the basic PyDV commands.
Note
In PyDV commands, spaces are used to delimit items on the input line. More precisely items on a command line are either space delimited, are preceded by a left parenthesis if the first item in a list, or terminated by a right parenthesis if the last item in a list. Semicolons may be used to stack multiple commands on a single interactive input line. In interactive mode, ranges of curve numbers or data-id’s may be indicated using colon notation. For example, a:f or 5:9
Run PyDV (LLNL)¶
/usr/gapps/pydv/pdv # Current version
/usr/gapps/pydv/3.0/pdv # Version specific
Run PyDV With a Command File¶
/usr/gapps/pydv/pdv -i <command-file>
Run PyDV In Column Format Mode¶
/usr/gapps/pydv/pdv -gnu <file.gnu>
Create a curve consisting of a straight line y=x over the interval (0,6.28).¶
[PyDV]: span 0 6.28
Print a list of curves on the display.¶
[PyDV]: lst
Take the sine of curve A¶
[PyDV]: sin a
Take the product of curves A and B¶
[PyDV]: * A B
Write all of the curves to an ASCII file¶
[PyDV]: save foo.txt a:c
Read file foo.txt¶
[PyDV]: rd foo.txt
Display curves in all open files¶
[PyDV]: menu
Shift curve A by one unit to the right¶
[PyDV]: dx A 1
Delete curve A from the display¶
[PyDV]: del A
Exit PyDV¶
[PyDV]: quit