### ERRORBAR

Draw error bars on the plotted data

#### Description:

Draw error bars in the X or Y directions, either treating the values in the EXCOL and EYCOL data areas as symmetric errors about the point, or as an upper limit with the XCOL or YCOL data area holding the other limit.

PONGO will plot error bars correctly even after logarithms of the data have been taken for the symmetric option, as long as the CLOG application has been used to perform the transformation (as opposed to CCMATH). For the non-symmetric case, the CCMATH application should be used to take the logarithms of the data in the EXCOL and EYCOL data areas.

#### Usage:

errorbar action [erterm]

#### Parameters:

"X" or "Y" depending upon which set of error bars is to be drawn.