I am using the stats package in Maxima. Works great. Don't have to use "eval". I developing a function for the student tTest. take a list for the data. I put some bad data in the list --example- [44,55,55/0,14*2]. Maxima takes the list in and finds the divide by 0. By the way the "14*2" works also. If I put the try-exception on the input from the html page. The server hings up. Where do I put it? My function is below ------------------------ def tTest(self,data1,conf,alt,mean_):#this works maxima.load("stats") dat =data1;con="conflevel="+str(conf);alt1a="alternative="+str (alt) me_="mean="+str(mean_) a1=maxima.test_mean(dat,con,alt1a,me_) a2=str(a1) str1="Student tTest" return str1,a2 --------------------------------------- Thanx
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