WT9397 {sspline}R Documentation

World Average Winter Temperature from 1993-1997

Description

The WT9397 data frame has 1391 rows and 4 columns. It contains the average temperature from 1993 to 1997 for those stations having non-missing observations on the winter (Dec-Feb) for ten years (1963-1967 and 1993-1997).

Format

This data frame contains the following columns:

recid
a numeric vector containing the coded information of the stations (length 11). The first three digits represent the country code; the next five digits, the station number; the last three digits, whether a station is a WMO staion or close to one.
lon
a numeric vector containing the longitudes (in degrees) of the stations.
lat
a numeric vector containing the latitudes (in degrees) of the stations.
avgt
a numeric vector containing the average temperatures for the stations (rounded to the second decimal point).

Source

The Global Historical Climatology Network (GHCN)
http://www.ncdc.noaa.gov/cgi-bin/res40.pl?page=ghcn.html

Examples

data(WT9397)

## Fit a smoothing spherical spline with part of the data
subdat <- WT9397[sample(nrow(WT9397), 200), 2:4]
attach(subdat)

smooth.sspline(lon, lat, avgt)

detach(subdat)

[Package sspline version 0.1-5 Index]