Hoja de preparación de datos

proc cas; data mycas.sevdeffits; length model $20; infile datalines truncover; input model$ @@; do while(model ne ''); input scale shape @@; output; input model$ @@; end; datalines; burr 1000 2 ; run; data mycas.countest; length _distname_ $20 _var_ $32; infile datalines truncover; input _distname_$ _var_$ estimate stderr; datalines; poisson _intercept_ 1.386294 0.05 ; run; quit;