%0 Generic
%A Sawitzki, Günther
%C Heidelberg
%D 1994
%F heidok:21473
%K Regression, Statistical computing, Software quality control
%R 10.11588/heidok.00021473
%T Testing Numerical Reliability of Data Analysis Systems
%U https://archiv.ub.uni-heidelberg.de/volltextserver/21473/
%X From 1990 to 1993, a series of tests on numerical reliability ofdata analysis systems has been carried out. The tests are based onL.Wilkinson's "Statistics Quiz". Systems under test included BMDP, Data Desk,Excel, GLIM, ISP, SAS, SPSS, S-PLUS,STATGRAPHICS. The results showconsiderable problems even in basic features of well-known systems. For allour test exercises, the computational solutions are well known. The omissionsand failures observed here give some suspicions of what happens in lesswell-understood problem areas of computational statistics. We cannot takeresults of data analysis systems at face value, but have to submit them to alarge amount of informed inspection. Quality awareness still needs improvement.
%Z Erschienen in: Computational Statistics and Data Analysis 18.2(1994), S. 269-301