Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Interpretation of coefficients in multiple regressions which model
linear dependence on an IV

Replies: 146   Last Post: Dec 15, 2012 6:44 PM

 Messages: [ Previous | Next ]
 Halitsky Posts: 600 Registered: 2/3/09
Please evaluate this "yield" table of method/subset avg slope 2-ways
per fold and len with p < .05

Posted: Dec 4, 2012 11:41 PM

You wrote:

"Comparing covariances of estimates is even trickier than comparing
standard errors, but if you have nothing better to do then fine,
look at their regressions on length. Plots will probably be more
informative than regression coefficients etc."

Thanks for the go-ahead but before I drop the 2-way approach per fold
and length using the new average slopes, would you evaluate the
following table with an eye toward deciding:

a) whether we have enough method/subset 2-ways per fold and length to
justify continuing to work with the average slopes of the current set
of regressions:

Ruq = c on (u,u^2)
Rub = c on (u, e, u*e)
Rubq = c on (e, u, u*e, u^2)

Auq = average slope for Ruq
Aubu = average slope for u coefficient of Rub
Aube = average slope for e coefficient of Rub
Aubqe = average slope for e coefficient of Rubq
Aubqu = average slope for u coefficient of Rubq

b) whether enough of these 2-ways have p's < .05 to justify continuing
to work with the current set of regressions.

If we don't have enough average slope 2-ways, or enough with p's < .
05, I will repeat the same analysis using the special covs for Rub and
Rubq.

Finally, if we do have enough p's < .05, can you suggest the correct
Bonferroni framework for "correcting them"?

Thanks as always for considering this matter.

Table:
# of
2-ways
Method Avg per # with
(N/R) Fold Slope len p < .05

1:R1 a1 Auq 66 5
1:R1 a1 Aubu 66 4
1:R1 a1 Aube 66 1
1:R1 a1 Aubqe 66 2
1:R1 a1 Aubqu 66 5
2:R2 a1 Auq 84 7
2:R2 a1 Aubu 84 7
2:R2 a1 Aube 84 10
2:R2 a1 Aubqe 84 12
2:R2 a1 Aubqu 84 7
3:R3 a1 Auq 45 2
3:R3 a1 Aubu 45 2
3:R3 a1 Aube 45 3
3:R3 a1 Aubqe 45 6
3:R3 a1 Aubqu 45 4
1:R1 a3 Auq 25 2
1:R1 a3 Aubu 25 5
1:R1 a3 Aube 25
1:R1 a3 Aubqe 25
1:R1 a3 Aubqu 25 4
2:R2 a3 Auq 83 7
2:R2 a3 Aubu 83 5
2:R2 a3 Aube 83 1
2:R2 a3 Aubqe 83
2:R2 a3 Aubqu 83 6
3:R3 a3 Auq 24
3:R3 a3 Aubu 24 1
3:R3 a3 Aube 24
3:R3 a3 Aubqe 24
3:R3 a3 Aubqu 24
1:R1 b1 Auq 2
1:R1 b1 Aubu 2
1:R1 b1 Aube 2
1:R1 b1 Aubqe 2
1:R1 b1 Aubqu 2
2:R2 b1 Auq 26 3
2:R2 b1 Aubu 26 4
2:R2 b1 Aube 26 2
2:R2 b1 Aubqe 26 3
2:R2 b1 Aubqu 26 3
3:R3 b1 Auq 1
3:R3 b1 Aubu 1
3:R3 b1 Aube 1
3:R3 b1 Aubqe 1
3:R3 b1 Aubqu 1
1:R1 b47 Auq 97 2
1:R1 b47 Aubu 97 5
1:R1 b47 Aube 97 3
1:R1 b47 Aubqe 97 2
1:R1 b47 Aubqu 97 3
2:R2 b47 Auq 101 2
2:R2 b47 Aubu 101 8
2:R2 b47 Aube 101 2
2:R2 b47 Aubqe 101 2
2:R2 b47 Aubqu 101 5
3:R3 b47 Auq 69 4
3:R3 b47 Aubu 69 5
3:R3 b47 Aube 69 1
3:R3 b47 Aubqe 69 1
3:R3 b47 Aubqu 69 5
1:R1 c1 Auq 101 7
1:R1 c1 Aubu 101 8
1:R1 c1 Aube 101 3
1:R1 c1 Aubqe 101 2
1:R1 c1 Aubqu 101 7
2:R2 c1 Auq 101 15
2:R2 c1 Aubu 101 12
2:R2 c1 Aube 101
2:R2 c1 Aubqe 101 1
2:R2 c1 Aubqu 101 12
3:R3 c1 Auq 101 8
3:R3 c1 Aubu 101 9
3:R3 c1 Aube 101 5
3:R3 c1 Aubqe 101 4
3:R3 c1 Aubqu 101 6
1:R1 c2 Auq 86 6
1:R1 c2 Aubu 86 3
1:R1 c2 Aube 86 2
1:R1 c2 Aubqe 86 3
1:R1 c2 Aubqu 86 7
2:R2 c2 Auq 101 15
2:R2 c2 Aubu 101 7
2:R2 c2 Aube 101 5
2:R2 c2 Aubqe 101 5
2:R2 c2 Aubqu 101 11
3:R3 c2 Auq 65 5
3:R3 c2 Aubu 65 3
3:R3 c2 Aube 65 5
3:R3 c2 Aubqe 65 4
3:R3 c2 Aubqu 65 4

Date Subject Author
11/21/12 Halitsky
11/21/12 Halitsky
11/22/12 Ray Koopman
11/22/12 Halitsky
11/23/12 Ray Koopman
11/23/12 Halitsky
11/23/12 Halitsky
11/24/12 Ray Koopman
11/24/12 Halitsky
11/24/12 Halitsky
11/25/12 Halitsky
11/26/12 Ray Koopman
11/26/12 Ray Koopman
11/26/12 Halitsky
11/27/12 Ray Koopman
11/27/12 Halitsky
11/27/12 Ray Koopman
11/28/12 Ray Koopman
11/28/12 Halitsky
11/27/12 Halitsky
11/27/12 Ray Koopman
11/27/12 Halitsky
11/27/12 Ray Koopman
11/27/12 Halitsky
11/27/12 Halitsky
11/27/12 Ray Koopman
11/28/12 Halitsky
11/28/12 Halitsky
11/28/12 Ray Koopman
11/28/12 Halitsky
11/29/12 Halitsky
11/30/12 Ray Koopman
12/2/12 Ray Koopman
12/2/12 Ray Koopman
12/2/12 Halitsky
12/2/12 Ray Koopman
12/2/12 Halitsky
12/2/12 Halitsky
12/2/12 Halitsky
12/2/12 Halitsky
12/3/12 Halitsky
11/30/12 Halitsky
11/30/12 Ray Koopman
12/1/12 Halitsky
12/1/12 Ray Koopman
12/1/12 Halitsky
12/1/12 Halitsky
12/1/12 Halitsky
12/1/12 Halitsky
12/5/12 Halitsky
12/5/12 Halitsky
12/5/12 Halitsky
12/5/12 Halitsky
12/5/12 Ray Koopman
12/6/12 Halitsky
12/7/12 Ray Koopman
12/7/12 Halitsky
12/7/12 Ray Koopman
12/7/12 Halitsky
12/7/12 Halitsky
12/7/12 Halitsky
12/7/12 Halitsky
12/7/12 Halitsky
12/7/12 Ray Koopman
12/7/12 Halitsky
12/7/12 Halitsky
12/7/12 Ray Koopman
12/7/12 Halitsky
12/8/12 Ray Koopman
12/8/12 Ray Koopman
12/8/12 Halitsky
12/9/12 Halitsky
12/8/12 Halitsky
12/8/12 Halitsky
12/8/12 Halitsky
12/9/12 Halitsky
12/9/12 gimpeltf@hotmail.com
12/9/12 Halitsky
12/9/12 Halitsky
12/10/12 Ray Koopman
12/10/12 Halitsky
12/10/12 Ray Koopman
12/10/12 Halitsky
12/10/12 Halitsky
12/11/12 Ray Koopman
12/11/12 Halitsky
12/10/12 Halitsky
12/11/12 Halitsky
12/11/12 Halitsky
12/11/12 Ray Koopman
12/11/12 Halitsky
12/12/12 Ray Koopman
12/12/12 Halitsky
12/13/12 Ray Koopman
12/13/12 Halitsky
12/13/12 Ray Koopman
12/13/12 Halitsky
12/14/12 Ray Koopman
12/14/12 Halitsky
12/13/12 Halitsky
12/13/12 Ray Koopman
12/14/12 Halitsky
12/14/12 Ray Koopman
12/14/12 Halitsky
12/14/12 Ray Koopman
12/14/12 Halitsky
12/14/12 Halitsky
12/14/12 Ray Koopman
12/14/12 Halitsky
12/14/12 Ray Koopman
12/15/12 Ray Koopman
12/15/12 Halitsky
12/15/12 Halitsky
12/15/12 Ray Koopman
12/14/12 Halitsky
12/14/12 Ray Koopman
12/14/12 Halitsky
12/1/12 Ray Koopman
12/1/12 Halitsky
12/1/12 Ray Koopman
12/1/12 Halitsky
12/2/12 Ray Koopman
12/2/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Halitsky
12/3/12 Ray Koopman
12/4/12 Halitsky
12/4/12 Halitsky
12/4/12 Ray Koopman
12/4/12 Halitsky
12/4/12 Ray Koopman
12/5/12 Halitsky
12/4/12 Halitsky
12/4/12 Ray Koopman
12/4/12 Halitsky
12/5/12 Halitsky
12/5/12 Ray Koopman
12/5/12 Halitsky
12/4/12 Halitsky
12/4/12 Halitsky
12/4/12 Ray Koopman