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by des_poi_na1988
Thu Sep 01, 2011 11:17 am
Forum: Econometric Discussions
Topic: variance nonstationary
Replies: 5
Views: 1709

variance nonstationary

hellow!! my topic is: analysis of the production of Japanese cars in the period: 1949-1988. I can not understand if my time serie is nonstationary in the variance from the line graph! :( i must take the logarithmic transformation of the series? i would appreciate if you help me. :) thanks!!! line gr...
by des_poi_na1988
Wed Aug 31, 2011 5:16 pm
Forum: Econometric Discussions
Topic: stationary pleaze help!!!!!!
Replies: 1
Views: 861

stationary pleaze help!!!!!!

how can i understand if a time serie is nonstationary in the variance from the time-plot? pleaze help me :(

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