search for: v3_total

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2008 Jul 24
0
Problem with GLS dwtest function
...del fitp2, but when I try to use the dwtest function in the lmtest library, I get the error message "Error in terms.default(formula) : no terms component". The model and data set are below. Any suggestions would be really helpful! Thanks a lot in advance, M. Grace fitp2: fitp2<-gls(V3_total~D_total+P_total,data=pdata,weights=varPower()) based on the data set pdata: pdata D_total V3_total P_total 1 75 158000 302.033 2 221 258000 126.664 3 1050 280000 538.547 4 8100 208000 1090.068 5 22100 235000 2038.937 6 5300 570000 2626.226 7 3...