Thanks to Kim Elmore, Chris Barker, Rolf Turner, Scott Chasalow,
Bill Dunlap, and Lee De Cola. The much-maligned factor() provided the
simplest solution. I used Bill Dunlap’s and Rolf Turner’s suggested
command:
table(factor(dataframe$Hour, levels=0:23))
and it worked beautifully. Thanks to everyone for taking
time to respond.
Win
*****************************************************************
Winifred
C. Crawford Staff Scientist/Senior Meteorologist
ENSCO,
Inc.
Aerospace
Sciences and Engineering Division
1980
N. Atlantic Ave., Suite 830
Cocoa
Beach, FL 32931
VOICE:
321.853.8130 FAX: 321.853.8415
EMAIL:
crawford.winnie@ensco.com
AMU
Quarterly Reports are available online:
http://science.ksc.nasa.gov/amu
*****************************************************************