tag:blogger.com,1999:blog-6977755959349847093.post3465397439232856432..comments2024-03-01T21:53:15.921-08:00Comments on The Pith of Performance: Melbourne's Weather and Cross CorrelationsNeil Guntherhttp://www.blogger.com/profile/11441377418482735926noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6977755959349847093.post-53260413469126996812014-04-03T08:41:26.561-07:002014-04-03T08:41:26.561-07:00wow! good service.what aGathering Weather Data!i l...wow! good service.what aGathering Weather Data!i like this.Anonymoushttps://www.blogger.com/profile/05121267687658713136noreply@blogger.comtag:blogger.com,1999:blog-6977755959349847093.post-84454340428801550962014-04-02T22:14:03.453-07:002014-04-02T22:14:03.453-07:00Glad to be of service, Andrew.
Speaking of "...Glad to be of service, Andrew. <br /><br />Speaking of "longitudinal data," you inspired me to add a footnote about how the inability to accurately determine longitude led early Dutch navigators to accidentally discover Neu Holland (Australia) and Van Diemen's Land (Tasmania).Neil Guntherhttps://www.blogger.com/profile/11441377418482735926noreply@blogger.comtag:blogger.com,1999:blog-6977755959349847093.post-55659026198382069462014-04-02T18:50:51.063-07:002014-04-02T18:50:51.063-07:00I had never come across the ccf function before.
...I had never come across the ccf function before.<br /><br />Unfortunately, of course, my data is never so nice as to just be day-of-the-year type data. Instead it is longitudinal data. A few projects ago I had someone who had given different number of interventions to individuals each day they remained in the hospital and tracked their mobility level each day. While analyzing it, I kept thinking, well it doesn't make sense that interventions would effect day-of mobility level, but some future mobility level. <br /><br />I spent the next few hours lagging at different intervals and re-running the regression and seeing if things were better.<br /><br />The ccf plotting function gave me the inspiration to write something very similar but that takes into account that observations are being clustered within individuals.<br /><br />Just wanted to say thanks for the inspiration. Anonymoushttps://www.blogger.com/profile/17907619787961721235noreply@blogger.comtag:blogger.com,1999:blog-6977755959349847093.post-82288277123339665072014-04-02T18:46:15.693-07:002014-04-02T18:46:15.693-07:00I had never come across the ccf function before.
...I had never come across the ccf function before.<br /><br />Unfortunately, of course, my data is never so nice as to just be day-of-the-year type data. Instead it is longitudinal data. A few projects ago I had someone who had given different number of interventions to individuals each day they remained in the hospital and tracked their mobility level each day. While analyzing it, I kept thinking, well it doesn't make sense that interventions would effect day-of mobility level, but some future mobility level. <br /><br />I spent the next few hours lagging at different intervals and re-running the regression and seeing if things were better.<br /><br />The ccf plotting function gave me the inspiration to write something very similar but that takes into account that observations are being clustered within individuals.<br /><br />Just wanted to say thanks for the inspiration. Anonymoushttps://www.blogger.com/profile/17907619787961721235noreply@blogger.com