free grads

Reading and Writing Compressed Data Sets

Command line editing and history

If the readline library compiles on your system then the default prompt will be ga-> as opposed to ga>. This indicates that command line editing is active. The library defaults toemacs mode but can be set up to run using vi syntax.

Here's a list of the commands which may typically be used:

ctrl-a   go to beginning of line 
ctrl-e   go to end of line 
ctrl-f   go forward one char 
ctrl-b   go backward one char 
ctrl-d   delete the char 
ctrl-p   recall previous line
ctrl-n   recall next line
ctrl-r   reverse search

Controlling Colors in grads

The grads Default colors

	Col#  Description   Sample    R   G   B  



	 0   background  0   0   0 (black by default) 



	 1   foreground  255 255 255 (white by default) 



	 2   red  250  60  60  



	 

()coll2gr

This function creates a grid from a collection of station data. The syntax is:

(<coll2gr(cnum <,num

cnum     collection number
num      number of vertical levels in the output grid (default is 10)

collect

This command provides a way for station data profiles and time series to be saved in memory as a set. The command format is:

collect cnum expr

set cmin

set cmin value

Contours not drawn below this value. Reset by clear or display.