standard normal homogeneity test (SNHT) absolute homogeneity test, SD different from 1

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Description

SNHTabsoluteII returns the result of the standard normal homogeneity test (SNHT) absolute homogeneity test with standard deviation different from 1, applied to a time series.

Usage

1
SNHTabsoluteII(dataSeries)

Arguments

dataSeries

time series of climate data

Value

The result of the SNHT absolute homogeneity test with SD != 1.

Author(s)

Jose Gama

Source

Wijngaard, J. B., Klein Tank, A. M. G. and Können, G. P. (2003), Homogeneity of 20th century European daily temperature and precipitation series. Int. J. Climatol., 23: 679–692. doi: 10.1002/joc.906

References

Wijngaard, J. B., Klein Tank, A. M. G. and Können, G. P. (2003), Homogeneity of 20th century European daily temperature and precipitation series. Int. J. Climatol., 23: 679–692. doi: 10.1002/joc.906

Examples

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# standard normal homogeneity test, SD different from 1(SNHT) for Turin 1961-2003
testTurin<- SNHTabsoluteII(yearly.average.temperature.Turin.Milan[,2])

# standard normal homogeneity test, SD different from 1(SNHT) for Milan 1961-2003
testMilan<- SNHTabsoluteII(yearly.average.temperature.Turin.Milan[,3])

plot(1961:2002,testTurin,type='l',col='cyan',ylim=c(0,30),
main='standard normal homogeneity test (SNHT), SD different from 1 for 1961-2003',
xlab='Years',ylab='test value')
par(new=TRUE)
plot(1961:2002,testMilan,type='l',col='magenta',ylim=c(0,30),xlab='',ylab='')
legend("top",c('Turin','Milan'),text.col=c('cyan','magenta'))

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