On 28.10.2010 06:50, Lao Meng wrote:
Hi all:
I have a dataset which contains two variables: Y and time
y<-c(228,189,232,198,252,315)
time<-2003:2008
How can I find out the trend(increase/decrease) of y along the time period?
If I use:
lm(y~time)
The "lm" command treats time as natural number,but not date.
What is "date"? WHere is the reproducible example?
Uwe Ligges
So maybe "lm" isn't appropriate.
Then,which function could be used?
Thanks a lot for your help.
My best
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