zoo: variable gets modified at making zoo object
Thanks for your interest. I've put the dataframe alyL32007 in http://dl.dropbox.com/u/3180464/alyL32007.rda ready to be used with load() Agus On Mon, May 28, 2012 at 6:11 PM, Gabor Grothendieck
<ggrothendieck at gmail.com> wrote:
On Mon, May 28, 2012 at 5:35 AM, Agustin Lobo <Agustin.Lobo at ictja.csic.es> wrote:
I'm doing:
alyL32007z <- zoo(alyL32007,alyL32007$time) range(time(alyL32007z))
[1] "2007-01-01 00:00:00 UTC" "2007-12-31 23:30:00 UTC" But then, while the original variable is:
summary(alyL32007$NEE_st)
? Min. 1st Qu. ?Median ? ?Mean 3rd Qu. ? ?Max. ? ?NA's -15.340 ?-1.615 ?-0.054 ?-0.814 ? 0.750 ? 8.965 ? 11124 the variable within the zoo object is different:
summary(alyL32007z$NEE_st)
? ? Index ? ? ? ? ? ? ? ? ? ? alyL32007z$NEE_st ?Min. ? :2007-01-01 00:00:00 ? ? 0.335: ? ?7 ?1st Qu.:2007-04-02 05:52:30 ? ? 0.582: ? ?7 ?Median :2007-07-02 11:45:00 ? ? 0.611: ? ?7 ?Mean ? :2007-07-02 11:45:00 ? ? 0.063: ? ?6 ?3rd Qu.:2007-10-01 17:37:30 ? ? 0.069: ? ?6 ?Max. ? :2007-12-31 23:30:00 ? (Other): 6363 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? NA's ? :11124 and I ?get an error at plotting:
plot(alyL32007z$NEE_st)
Error in plot.window(...) : invalid 'ylim' value Any help appreciated, Thanks Agus -- Dr. Agustin Lobo Institut de Ciencies de la Terra "Jaume Almera" (CSIC) Lluis Sole Sabaris s/n 08028 Barcelona Spain Tel. 34 934095410 Fax. 34 934110012 e-mail Agustin.Lobo at ictja.csic.es https://sites.google.com/site/aloboaleu/
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-- Dr. Agustin Lobo Institut de Ciencies de la Terra "Jaume Almera" (CSIC) Lluis Sole Sabaris s/n 08028 Barcelona Spain Tel. 34 934095410 Fax. 34 934110012 e-mail Agustin.Lobo at ictja.csic.es https://sites.google.com/site/aloboaleu/