st: Corrgram and values saved in r()

[Tomas Lind <tomas.lind@sll.se>]

Hi Statalisters

I can´t read all the information in the r-memory when using -corrgram-.


In the dataset below I calculate the PAC for the first 20 lags. These can be seen in the graph and from the -matrix list-. It also works fine to look at r(pac1) up till r(pac10) but I can´t get the r(pac11)!


webuse air2 , clear
tsset t
corrgram air, lags(20)
matrix list r(PAC)	
di r(pac1)  
di r(pac10)
di r(pac11)


I want to sum the absolut value of all PAC´s up to lag 20 and I tried to do it this crude way (but it only works if I stop at lag 10):

di "Summa" abs(r(pac1)) + abs(r(pac2)) + abs(r(pac3)) + abs(r(pac4)) + abs(r(pac5)) + ///
          abs(r(pac6)) + abs(r(pac7)) + abs(r(pac8)) + abs(r(pac9)) + abs(r(pac10)) +  ///
		  abs(r(pac11)) + abs(r(pac12)) + abs(r(pac13)) + abs(r(pac14)) + abs(r(pac15)) + ///
		  abs(r(pac16)) + abs(r(pac17)) + abs(r(pac18)) + abs(r(pac19)) + abs(r(pac20))

Any ideas howe to fix this?


I´m using Stata 11.1 on Windows.

Yours
Tomas

Tomas Lind
Stockholm County Council
Karolinska Institutet
Sweden
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/