Timeline for Regression shows positive linear relationship. Then why this negative equation [duplicate]
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Oct 2, 2014 at 14:38 | history | closed |
Glen_b Nick Cox ttnphns Scortchi♦ whuber♦ |
Duplicate of Why is the intercept negative, and what does my regression show? | |
| Sep 30, 2014 at 23:53 | review | Close votes | |||
| Oct 1, 2014 at 18:27 | |||||
| Sep 29, 2014 at 19:50 | history | reopened |
gung - Reinstate Monica Harvey Motulsky Peter Flom |
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| Sep 29, 2014 at 12:02 | review | Reopen votes | |||
| Sep 29, 2014 at 19:50 | |||||
| Sep 29, 2014 at 11:43 | history | edited | Umair Aslam | CC BY-SA 3.0 |
more information
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| Sep 29, 2014 at 5:58 | comment | added | Umair Aslam | yes, the data i have starts much far above 0, the first related event would intersect at 14,000,000 subs and some 200,000,000 revenue. I am using time in days, daily sub and revenue picture is given. I just wanted to see how many subs increase would mean what in revenue. My Revenue / SUB mean is 12.24, then what does this 24 mean ? | |
| Sep 29, 2014 at 3:57 | history | closed | whuber♦ | Needs details or clarity | |
| Sep 29, 2014 at 0:09 | comment | added | Glen_b | You might find the equation more intuitive if you also formulate your $y$ and $x$ (which I presume are "revenue" and "subs"? you should clarify your variable definitions) in terms of deviation from the mean, which gives: $\hat{y} -\bar{y}=24.4 (x-\bar{x})$. | |
| Sep 28, 2014 at 23:29 | comment | added | Ben Bolker | the huge negative intercept suggests that the range of the independent variable in your data set starts far above zero -- are you for example using time in days or hours from the beginning of the common era? | |
| Sep 28, 2014 at 22:47 | history | edited | Nick Cox | CC BY-SA 3.0 |
edited body; edited title
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| Sep 28, 2014 at 22:46 | comment | added | Nick Cox | That is the equation of a straight line with positive slope. Try plotting it. | |
| Sep 28, 2014 at 22:13 | review | First posts | |||
| Sep 28, 2014 at 23:17 | |||||
| Sep 28, 2014 at 22:12 | history | asked | Umair Aslam | CC BY-SA 3.0 |