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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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34
Task/Ranking-methods/Zkl/ranking-methods-1.zkl Normal file
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fcn group(scores){ // group like scores into one list --> list of lists
sink:=List();
scores.reduce('wrap(ps,sn,buf){
if(sn[0]!=ps){ sink.append(buf.copy()); buf.clear(); }
buf+sn;
sn[0];
},scores[0][0],buf:=List());
sink.append(buf);
}
fcn print(list,rank){
list.apply2('wrap(sn){ "%2s: %s (%d)".fmt(rank,sn[1],sn[0]):println(_); });
}
fcn rankViaStandard(scores){
rank:=1;
foreach group in (group(scores)){ print(group,rank); rank+=group.len(); }
}
fcn rankViaModified(scores){
rank:=0;
foreach group in (group(scores)){ rank+=group.len(); print(group,rank); }
}
fcn rankViaDense(scores){
rank:=1;
foreach group in (group(scores)){ print(group,rank); rank+=1; }
}
fcn rankViaOrdinal(scores){
scores.apply2('wrap(sn,rr){ "%2s: %s (%d)".fmt(rr.inc(),sn[1],sn[0]):println(_); },Ref(1));
}
fcn rankViaFractional(scores){
rank:=1;
foreach group in (group(scores)){
n:=group.len(); r:=rank.reduce(n,'+,0.0)/n; rank+=n;
print(group,"%5.2f".fmt(r));
}
}

8
Task/Ranking-methods/Zkl/ranking-methods-2.zkl Normal file
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// these are sorted!?!
scores:=T(T(44,"Solomon"), T(42,"Jason"), T(42,"Errol"), T(41,"Garry"),
T(41,"Bernard"),T(41,"Barry"),T(39,"Stephen"),);
"Standard:" .println(); rankViaStandard(scores);
"Modified:" .println(); rankViaModified(scores);
"Dense:" .println(); rankViaDense(scores);
"Ordinal:" .println(); rankViaOrdinal(scores);
"Fractional:".println(); rankViaFractional(scores);