Displaying 2 results from an estimated 2 matches for "obdatasumm".
2012 Mar 15
2
summing "transfers"
I have a dataframe from an On-Board Survey with weights ("expwgt") and variables for up to 8 used lines: VEH1 through VEH8. The lines are labeled "MT-..1" through "MT-902". I want to know how many transfers there are between MT-802 and MT-901. That is, when one of them is VEHx and the other is VEHx+1 or VEHx-1
E.g. {VEH1 = MT-802 AND VEH2 = MT-901 } plus {VEH2 =
2012 Mar 07
4
Subset problem
Good Morning
??? I have a small question regarding the function subset.
I am copying data from one table but I just want to collect data from a
user.
When do I take the view, presents the results I want.
The problem arises when can I make the tab. for RES_ID, introduces me to
zero results do not envision noVIEW
val_user='16'
x.sub <-