Here I am concerned cutting certian parts of table file and plotting them with different symbols using xyplotter_auto.

 

You can do this in:   $scohtm/scocodes/munge/ex3_tables/work

I perform quick check (to make sure I have the params file):
% ls
GC.parlab  GC.table
% table_checker GC N
38 12 
% ls
GC.params  GC.parlab  GC.table
*** I now have a params file, and I see that my table file has 38 data 
    lines and 12 paramters (columns) in the table. 

% cat GC.parlab
gc       guide probe used to offset
PickleP  gc pickle placement of guide star
dXo      Obsrved X offset in arcseconds 
dXo      Obsrved Y offset in arcseconds 
PAo      Obsrved Position Angle in degrees
Ro       Obsrved Total Offset in arcseconds 
dXc      Commanded X offset in arcseconds 
dXc      Commanded Y offset in arcseconds 
PAc      Commanded Position Angle in degrees
PSgc1    Derived gc1 plate scale (arcsec/pix)
PSgc2    Derived gc2 plate scale (arcsec/pix)
ROT      Rotation (PAo-PAc, degrees)  


*** First I want to isolate the gc1 data 
% table_text_mask GC gc gc1 mask1

*** Next I make a table file of these 
% get_table_rows GC mask1 gc1
% ls
gc1.params  gc1.parlab	gc1.table  GC.params  GC.parlab  GC.table  mask1  S/

*** I could plot just the gc1 data:     
% xyplotter_auto gc1 PSgc1 PSgc2 1

**** What I really want is to divide gc1 into 3 section by PickleP

% table_text_mask gc1 PickleP ccw MASK 
% get_table_rows gc1 MASK gc1_ccw

% table_text_mask gc1 PickleP cen MASK 
% get_table_rows gc1 MASK gc1_cen

% table_text_mask gc1 PickleP cw MASK 
% get_table_rows gc1 MASK gc1_cw

*** I edit my List.1 file to use these files: 
% cat List.1
gc1_ccw.table   10 11 0 0   point    r o 70   gc1_ccw
gc1_cen.table   10 11 0 0   point    b o 70   gc1_cen
gc1_cw.table    10 11 0 0   point    g o 70   gc1_cw

I change the Axes.1 file:
% cat Axes.1
Plate scales when gc1 is guiding 
  0.18069 0.21809 Derived gc1 plate scale (arcsec/pix) 
  0.17779 0.21302 Derived gc2 plate scale (arcsec/pix) 

I make the plot: 
% xyplotter List.1 Axes.1

Next I make another plot with these same files:
% xyplotter_auto gc1_ccw  Ro  ROT  2

You can read a more detailed discussion of xyplotter_auto and see different exmaples of making plots. Below is the final plot I made.

The field rotation between commanded and observed gc1 orientations. % cat ../work/Axes.1 % cat Axes.2 Rotation for gc1 4.35900 15.99100 Observed Total Offset in arcseconds -1.05900 4.85400 Rotation (PAo-PAc, degrees) % cat List.2 gc1_ccw.table 6 12 0 0 point r o 70 CCW gc1_cen.table 6 12 0 0 point b o 70 CEN gc1_cw.table 6 12 0 0 point g s 70 CW % xyplotter List.2 Axes.2 This plot was made in just a couple minutes of cutting up the original GC file.