Full_Name: Hugh Miller Version: 2.8.1 OS: XP Submission from: (NULL) (128.250.24.101) Hi there, I've been looking at approaches that use the projection pursuit regression function fairly (ppr) heavily, and have discovered that it crashes my R system on occasion. It only happens with the inputs are pathological in some way I don't understand. I have pasted such an example below. Any help gratefully appreciated. Regards, Hugh ### I run the following code to obtain the crash: bad <- read.csv("C:\\My directories\\bad.csv") bady <- bad[,3] badx <- bad[,1:2] ppr(badx,bady, nterms=1) ### This is the data I read in from the bad.csv file: "","","bady" "1",-0.0348207628376986,1,-0.542937988158036 "2",-0.0191633397482220,2,-0.169266091065016 "3",-0.0341944659141195,1,-0.275406839429961 "4",0.0249905933641021,2,0.384150222915368 "5",0.0155961395104161,2,0.2341732751562 "6",-0.0792878444118122,2,-0.021997198276666 "7",-0.0248000120604336,1,0.399971463068032 "8",0.108914381123697,1,-0.623493578304602 "9",0.00620168565673016,1,-0.402266282137639 "10",-0.034507614375909,2,1.08390058914255 "11",-0.0905611890362353,2,0.024273472328843 "12",0.0459715403040008,1,-0.448251018679603 "13",-0.00976888589453599,2,0.70163011189378 "14",-0.0157187066685371,1,0.123718062829826 "15",-6.12835790604833e-05,2,0.0929302960910126 "16",0.107661787276539,1,0.0445186997621552 "17",-0.0238605666750649,2,-0.268966040102523 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