[R] calculate response probabilities using sem-analysis
Hi everyone, I just conducted a structural equation model for estimating a response model. This model should predict the probability that someone is responding to a direct mailing. I used the sem package for this. When I have my coefficients I want to know how well my model predicts the probability of response. How can I calculate these probabilities? I tried to use the unstandardized coefficients, just like a regression coefficient in the following formula: Y = b1*x1 + b2*x2 But then I have values larger than 1, so that aren't probabilities. Does anyone dealt with this problem before? You can be of great help to me!! Kind regards, Tryntsje [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] calculate response probabilities using sem-analysis
Did you back-calculate to estimate an intercept? Alternately, I've been working on a function that takes a fitted sem and gets predicted values given an input. Contact me off-list and I'll send it to you. On Mar 22, 2010, at 8:37 AM, Tryntsje Wesselius wrote: Hi everyone, I just conducted a structural equation model for estimating a response model. This model should predict the probability that someone is responding to a direct mailing. I used the sem package for this. When I have my coefficients I want to know how well my model predicts the probability of response. How can I calculate these probabilities? I tried to use the unstandardized coefficients, just like a regression coefficient in the following formula: Y = b1*x1 + b2*x2 But then I have values larger than 1, so that aren't probabilities. Does anyone dealt with this problem before? You can be of great help to me!! Kind regards, Tryntsje [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] calculate response probabilities using sem-analysis
Hi everyone, I just conducted a structural equation model for estimating a response model. This model should predict the probability that someone is responding to a direct mailing. I used the sem package for this. When I have my coefficients I want to know how well my model predicts the probability of response. How can I calculate these probabilities? I tried to use the unstandardized coefficients, just like a regression coefficient in the following formula: Y = b1*x1 + b2*x2 But then I have values larger than 1, so that aren't probabilities. Does anyone dealt with this problem before? You can be of great help to me!! Kind regards, Tryntsje [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
