Re: [amelia] CSTS data with boundary priors

Hi Milan, Are you receiving an error message from Amelia? Or are the imputation falling outside of the specified bounds? In addition to the bounds argument, there is another way to specify two-sided bounds using transformations. If you can transform your variable into a (0,1) variable (that is, a proportion between the two bounds), then you can pass this transformed variable to the logistic argument (lgstc), which will force Amelia to always impute it between 0 and 1. After you get the output back from Amelia, you can put it back on to the original scale with code like this: for (i in 1:a.out$m) { a.out$imputations[[i]]$myvar <- scale*a.out$imputations[[i]]$myvar + offset } Filling in the scale and offset values according to the transformation to a (0,1) variable. This might be of help to someone trying to implement bounds. In any case, please give us a bit more detail on your problem and we can try to run it down. Thanks, matt. On Wed, Jul 15, 2009 at 9:13 AM, Milan Svolik&lt;msvolik(a)gmail.com&gt; wrote: - Amelia mailing list served by Harvard-MIT Data Center [Un]Subscribe/View Archive: http://lists.gking.harvard.edu/?info=amelia More info about Amelia: http://gking.harvard.edu/amelia