Displaying 2 results from an estimated 2 matches for "stnid".
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snid
2011 Jul 27
2
for loop help
I am having a hard time putting the below into a loop, where it pulls out ppt from all he stations I have versus having to go through and hard code the data to the specific stations. I tried
stnID <- stnid[which(duplicated(stnid)==FALSE)]
for(i in 1:length(stnID))
{
ppt[i] <- ppt[which(stnid==[i])]
}
but it doesn't like to use the which function inside a for loop? Any idea's here is a sample of my code... thanks-Cassie
### label data ###
stnid <- dat1[,1] #list of stations...
2008 Apr 14
2
linear regression "group by"
Hi all. I'm brand new to R.
My dataset (stored in MySQL) is a list of weather stations in rows by
year with various weather variables in columns, for example:
STNID YEAR TEMP DEWP
station1 1990 54 50
station1 1991 23 10
station1 1992 34 18
station2 1990 45 41
station2 1991 32 25
station2 1992 21 11
I'm trying to run linear regression and get the basic output (i.e.
intercept, slope, an...