Displaying 2 results from an estimated 2 matches for "alsm".
Did you mean:
alsa
2007 Jun 06
1
opening a file from within a zipfile that is online
Hi
Reading the help for ?unz I was wondering if I can read data into R from within
an zipfile that is on some website, like maybe:
dtaa =
read.table(unz("http://www.ats.ucla.edu/stat/examples/alsm/alsm.zip","Ch01pr19.dat"))
Thanks for letting me know if you came acros such a thing before.
Toby
2007 Aug 20
1
Ask for functions to obtain partial R-square (squared partial correlation coefficients)
...dy
included in multiple linear regression model.
The following link has very clear explanations on partial and
semi-partial correlation:
http://www.psy.jhu.edu/~ashelton/courses/stats315/week2.pdf
In SAS, the options is PCORR2 and SCORR2.
For example(from http://www.ats.ucla.edu/stat/sas/examples/alsm/alsmsasch7.htm)
data ch7tab01;
input X1 X2 X3 Y;
label x1 = 'Triceps'
x2 = 'Thigh cir.'
x3 = 'Midarm cir.'
y = 'body fat';
cards;
19.5 43.1 29.1 11.9
24.7 49.8 28.2 22.8
30.7 51.9 37.0 18.7
29.8 54.3 31.1 20.1
19.1 4...