Displaying 3 results from an estimated 3 matches for "airtemp".
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airtem
2013 Jan 22
1
How to assign time series to a vector with one leap year
Hello All,
I am trying to do the time series analysis in R and I want to assign a
vector as a time series. The data I provided is hourly. The data is from
Jan 1 2008 to Dec 31 2009. How can I assign the data such that the first
year is leap year and second is not ?
airtemp <- read.csv("airtemp.csv",header=T,sep="")
aw <- ts(airtemp,start=2008,frequency=8784,end=2009)
I assigned frequency as 8784 because 2008 year will have 8784 hourly data
points and 2009 has 8760 data points. The total data points are 17544
The data can be found on
https...
2007 Jan 08
2
Simple spectral analysis
...the spectrum() and pgram() functions, but
did not find a way through... The final aim would be to
get the periodogram (and the residuals from the reassembled data set...)
Thanks and greetings,
Georg
The data set:
air = read.csv("http://www.hydrology.uni-kiel.de/~schorsch/air_temp.csv")
airtemp = ts(T_air, start=c(1989,1), freq = 365)
plot(airtemp)
--
Georg Hoermann, Dep. of Hydrology, Ecology, Kiel University, Germany
+49/431/23761412, mo: +49/171/4995884, icq:348340729, skype: ghoermann
2012 May 30
1
caret() train based on cross validation - split dataset to keep sites together?
...first post as well, so if I left anything out that would be good to
know as well.
Tyrell Deweber
R version 2.13.1 (2011-07-08)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: x86_64-redhat-linux-gnu (64-bit)
Comid?? tempymd??????????? watmntemp?????? airtemp?????????predictorb???
15433??? 1980-05-01????????? 11.4????????? 22.1????????????????
15433??? 1980-05-02????????? 11.6??????????23.6??????? ????????
15433??? 1980-05-03????????? 11.2??????????28.5
15687??? 1980-06-01????????? 13.5??????????26.5
15687??? 1980-06-02????????? 14.2??????????26.9...