Displaying 2 results from an estimated 2 matches for "skinfold".
2010 Jun 11
0
Correlation Matrix
...v(lm(calorie~height))) to get the correlation
matrix of estimated coefficients
boltonboy999 wrote:
>
> Hi everyone,
>
> This is pretty urgent so if anyone can help that would be great.
>
> I have a table of information. The categories are weight, height,
> calories and skinfold. There are 20 entries. I have had to carry out
> linear regressions of calories on height, weight and on height and weight.
> I have done this using the lm(calorie~height) function etc.
>
> This has given me the 't' values I needed to proove significance etc.
>
> Now...
2005 Mar 08
1
coefficient of partial determination...partial r square [ redux]
If I'm not mistaken, partial R-squared is the R^2 of the quantities plotted
in a partial residual plot, so you can base the computation on that. Prof.
Fox's `car' package on CRAN has a function for creating those plots, but you
need to figure out the way to extract the quantities being plotted.
[In any case, the basic tools for doing such computations are all in R, and
it