Re: [R] Bias in sample - Logistic Regression

2008-10-02 Thread Pedro.Rodriguez
] [mailto:[EMAIL PROTECTED] On Behalf Of Wensui Liu Sent: Wednesday, October 01, 2008 7:20 PM To: [EMAIL PROTECTED] Cc: r-help@r-project.org Subject: Re: [R] Bias in sample - Logistic Regression Hi, Shiva, The idea of reject inference is very simple. Let's assume a credit card environment

Re: [R] Bias in sample - Logistic Regression

2008-10-01 Thread Wensui Liu
Hi, Shiva, The idea of reject inference is very simple. Let's assume a credit card environment. There are 100 applicants, out of which 50 will be approved and booked in. Therefore, we can only observe the adverse behavior, such as default and delinquency, of 50 booked accounts. Again, let's

[R] Bias in sample - Logistic Regression

2008-09-30 Thread Maithili Shiva
Hi. This is my first mail. I am new to R and also to the company where I am employed now. I have Statistics background (i.e. Master of Science). However, it is only now I understand what I learned in text is simply a bookish knowledge and when it comes to actually applying statistics in real