[R] bug? and New bug.

[Mai Zhou]

Thanks to Thomas Lumley and Prof Brian Ripley. I edited the survival4
package interpreted file, change wherever 
   sys.parent()            to 

   sys.frame(sys.parent()) .

It appears in more then 5 places though. There are a few places
other then eval() statements I also changed. (Will that have some ill
effect?)

A new bug.  In 0.63.0 (windows NT) and 0.63.2 (on the Rweb)

> pt(1.96,df=100)
[1] 0.9736105          #this is OK
> pt(1.96, df=100000000000000000000)
[1] 0.5                #clearly wrong

and for df=1000000 it took way too long to compute

same with the F-distribution function. 

Mai Z
mai at ms.uky.edu
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