(XBARONLY) Keyword (SPCHART command)

(XBARONLY) suppresses the R or s secondary charts. If this keyword is omitted, the R or s chart will be generated with the X-bar chart.

Example

SPCHART
  /XR=ph BY time (XBARONLY)
  /CAPSIGMA=RBAR
  /SIGMAS=3
  /MINSAMPLE=2.