Hi Where can I find information about the cook's distance that appears in the plot(lm.object) function ? Thanks ernesto -------------- next part -------------- A non-text attachment was scrubbed... Name: ernesto.vcf Type: text/x-vcard Size: 321 bytes Desc: Card for José Ernesto Jardim Url : https://stat.ethz.ch/pipermail/r-help/attachments/20000818/1e5a8925/ernesto.vcf