Data Analysis, Data, Data Science, Sql, Python.
…)4=A3.group(uid).(~.sort(etime))5=A4.new(~.select@1(etype==A1(1)):first,~:all).select(first)6=A5.(A1.(t=if(#==1,t1=first.etime,if(t,all.select@1(etype==A1.~ && etime>t && etime<t1+7).etime, null))))7=A6.groups(;count(~(1)):STEP1,count(~(2)):STEP2,count(~(3)):STEP3) SPL provides order-related