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by mengyu
April 27th, 2005, 2:41 pm
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

Thanks for all the recommendations, I'd test them one by one THe chapter 6 Spectral analysis of Hamilton is a good introdution
by mengyu
April 27th, 2005, 2:41 pm
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

Thanks for all the recommendations, I'd test them one by one THe chapter 6 Spectral analysis of Hamilton is a good introdution
by mengyu
April 27th, 2005, 2:40 pm
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

Thanks for all the recommendations, I'd test them one by one THe chapter 6 Spectral analysis of Hamilton is a good introdution
by mengyu
April 27th, 2005, 2:39 pm
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

Thanks for all the recommendations, I'd test them one by one THe chapter 6 Spectral analysis of Hamilton is a good introdution
by mengyu
April 27th, 2005, 2:38 pm
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

Thanks for all the recommendations, I'd test them one by one THe chapter 6 Spectral analysis of Hamilton is a good introdution
by mengyu
April 26th, 2005, 5:55 am
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

a sound advice, thx.Any further suggestion on finding seasonal component based on formula? Or is there some reference book?
by mengyu
April 25th, 2005, 5:45 am
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

It's a time series observations against the time index. Any suggestions are welcome
by mengyu
April 22nd, 2005, 10:20 am
Forum: Technical Forum
Topic: Time Series Analysis, Seasonal Componet Adjustment
Replies: 21
Views: 153637

Time Series Analysis, Seasonal Componet Adjustment

<t>Hi, I encountered some problem in finding seasonal component. I wish I could find some suggestions.The thing is for a time series, assume I have no idea about where this serie comes from but I still want to know whether it has seasonal component or not, then what should I do? Also assume I know t...
by mengyu
March 17th, 2005, 12:40 pm
Forum: Technical Forum
Topic: Zero-crossing and ARMA
Replies: 5
Views: 156523

Zero-crossing and ARMA

<t>first of all, thanks for all your replies.1.zero-crossing rate is the number of times a time series in a certain time periods cross its mean which is zero in white noise case.2.When I tested the PACF, I found the series could be described as an AR(2) with many in ACF. However, after I simulated A...
by mengyu
March 17th, 2005, 12:40 pm
Forum: Technical Forum
Topic: Zero-crossing and ARMA
Replies: 5
Views: 156523

Zero-crossing and ARMA

<t>first of all, thanks for all your replies.1.zero-crossing rate is the number of times a time series in a certain time periods cross its mean which is zero in white noise case.2.When I tested the PACF, I found the series could be described as an AR(2) with many in ACF. However, after I simulated A...
by mengyu
March 16th, 2005, 8:38 am
Forum: Technical Forum
Topic: Zero-crossing and ARMA
Replies: 5
Views: 156523

Zero-crossing and ARMA

No one knows it? I can't believe it. Any suggestion could make sense. Did anyone here knows some formula related to zero-crossing rate?
by mengyu
March 15th, 2005, 8:19 am
Forum: Technical Forum
Topic: Zero-crossing and ARMA
Replies: 5
Views: 156523

Zero-crossing and ARMA

<t>Hi, guys this is the first time I use this forum, I hope I could get some answer from experts in this quantitative finance field.My problem is that I'm looking for the formula for computing zero-crossing rate of ARMA. I know there is a Rice formula, but it is not available freely on website( at l...