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statistics:multiple-regression [2010/12/20 11:24 am PST] John Colby [Example] |
statistics:multiple-regression [2010/12/26 5:10 pm PST] (current) John Colby |
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| - | ====== Multiple Regression ====== | + | ====== Multiple regression example with R ====== |
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| - | ====== Example ====== | + | |
| We begin by simulating some data. Our response variable ''y'' (perhaps FA?) is related to ''age'' and ''group''. It is also related to test ''score'', but this relationship is modified by ''group'' (an interaction). Further, as might be expected, ''score'' is also somewhat correlated with ''age''. There is also a sampling error term. | We begin by simulating some data. Our response variable ''y'' (perhaps FA?) is related to ''age'' and ''group''. It is also related to test ''score'', but this relationship is modified by ''group'' (an interaction). Further, as might be expected, ''score'' is also somewhat correlated with ''age''. There is also a sampling error term. | ||