Gerhard

the user was only expecting changing values for 2 variables but forgetting a ========do; ;end;========== (in my adapted example i choose sex='2' to show the fact that it was not change -forget the meaning of the variablename- ) and the consequence was unexpected change of age and no change at sex as a result of an (unknown by the user) implicit test (age=10 AND sex="2") !

The user was expecting age=10 sex="2" for every M of the class!

Andre

Gerhard Hellriegel a écrit : > ...what did the user expect to get? > (a very strange method to assign 0...) > Another idea, to assign 10: > > data cl; > set sashelp.class; > if sex="M" then age=(10 or sex="2")*10; /*else...;...; */ > run; > > or also interesting, to avoid changing anything: > > data cl; > set sashelp.class; > if sex="M" then age=(10 or sex="2")*age; /*else...;...; */ > run; > > > > in germany we say (don't know if that is a good translation): to shake the > haunters off... > > Gerhard > > > > On Thu, 6 Nov 2008 12:09:38 +0100, Andre Wielki <wielki@INED.FR> wrote: > > >> A user here was writing Sas code analogous to this one >> data cl; >> set sashelp.class; >> if sex="M" then age=10 and sex="2"; /*else...;...; */ >> run; >> >> As the log was >> >> 203 data cl; >> 204 set sashelp.class; >> 205 if sex="M" then age=10 and sex="2"; >> 206 run; >> >> NOTE: There were 19 observations read from the data set SASHELP.CLASS. >> NOTE: The data set WORK.CL has 19 observations and 5 variables. >> NOTE: DATA statement used (Total process time): >> real time 0.00 seconds >> cpu time 0.00 seconds >> >> >> He was going further!!!!!!!!!! >> >> I hope everybody reading this is aware of the results! >> If not submit, quick look at the results. >> >> >> >> Andre >> >> -- >> Andr� WIELKI >> INED (Institut National d'Etudes D�mographiques) >> Service Informatique >> 133 Boulevard Davout 75980 Paris Cedex 20 >> m�l : wielki@ined.fr t�l : 33 (0) 1 56 06 21 54 >> > >

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