regression curve การใช้

The measured failure times as a function of the stresses in the pipe wall has been demonstrated in so-called Regression Curves.
From the results of the logistic regression, DIF would be indicated if individuals matched on ability have significantly different probabilities of responding to an item and thus differing logistic regression curves.
But before seeing that this holds true, we will have a look at how the inverse regression curve is computed within the SIR-Algorithm, which will be introduced in detail later.
SIR uses the inverse regression curve, E ( \ underline { x } \, | \, y ) to perform a weighted principal component analysis, with which one identifies the effective dimension reducing directions.
In what follows we will consider this centered inverse regression curve and we will see that it lies on a \, k dimensional subspace spanned by \, \ Sigma _ { xx } \ beta _ i \,'s.