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Nov 21, 2012 at 20:21 comment added bill_080 @chandler : Google never answered the e-mail. I played with both Trend and Correlate for a while, but neither were as useful as I expected, so I moved on.
Nov 21, 2012 at 20:15 vote accept bill_080
Nov 21, 2012 at 17:22 comment added chandler @bill_080 Any response from google about why the data differ between the two systems? I actually found this question seeking an explanation related to your observation
S May 26, 2012 at 7:08 history suggested Ellie K CC BY-SA 3.0
Corrected first URL since Google Labs no longer exists as a project. Added URL for direct link to whitepaper PDF referenced in question. Maybe some grammar and format fussing with too...
May 26, 2012 at 6:52 review Suggested edits
S May 26, 2012 at 7:08
May 15, 2012 at 1:58 answer added naught101 timeline score: 7
Mar 29, 2012 at 9:39 comment added naught101 @chl: although your answer is a little obvious, it IS still an answer, and you should make it so, so it can be accepted.
May 28, 2011 at 2:36 comment added bill_080 I also noticed that the data for the same query don't match on Google Trends and Correlate. I sent Google an e-mail.
May 27, 2011 at 21:13 history tweeted twitter.com/#!/StackStats/status/74221618230067201
May 27, 2011 at 20:23 comment added bill_080 @chl: You're right. I clicked on the FAQ's, but got sidetracked by the Whitepaper. So, they're using correlation of a time series (not the change in the time series). That's like calculating the correlation of a stock price, not returns. That's a little surprising.
May 27, 2011 at 20:16 comment added chl Aren't these just Pearson correlation coefficients as reported on the tutorial? (Section Correlated Queries)
May 27, 2011 at 20:07 history asked bill_080 CC BY-SA 3.0