test.DW: Durbin-Watson statistic
In dcv: Conventional Cross-validation statistics for climate-growth model

Description Usage Arguments Details Value Author(s) References See Also Examples

Perform the Durbin-Watson statistic of actual and reconstructed climate variables over the common duration

1	test.DW(x, y)

`x`	actual climate variable
`y`	reconstructed climate variable

perform the Durbin-Watson statistic of actual and reconstructed climate variables over the common duration

The value of Durbin-Watson statistic

Zongshan Li zsli_st@rcees.ac.cn

J. Durbin, G.S. Watson (1950), Testing for Serial Correlation in Least Squares Regression I. Biometrika 37, 409-428.

lm

1 2	data(val) test.DW(val [,1],val [,2])

Loading required package: lmtest
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric


	Durbin-Watson test

data:  x ~ y
DW = 0.82109, p-value = 3.772e-07
alternative hypothesis: true autocorrelation is greater than 0