Imperative Code Block Loop While

Lists-Logic
1

I want to write a Kmeans loop using design script. I have successfully got the code working WITH OUT looping. The script used cross lacing. I found out that this is not supported in imperative Code Block. I’m now struggling to implementing the “for i” method to get the code working as a loop.

No%20looping
No looping.png931×538 137 KB

Looping%20Kmean
Looping Kmean.png821×733 158 KB

//Find the closest K value
distance = points<1>.DistanceTo(Ks<2>);
min = List.MinimumItem(distance<1L>);
Kindices = Flatten(List.AllIndicesOf((min<1L> == distance<1L>)<1L>, true));

//Group Points by closest K value
grps = List.GroupByKey(points, Kindices);
grpPnts = __TryGetValueFromNestedDictionaries(grps, “groups”);
Kin = __TryGetValueFromNestedDictionaries(grpPnts, “unique keys”);

//Find New Centroid Location
Xave = Math.Average(grpPnts.X);
Yave = Math.Average(grpPnts.Y);
Knew = Point.ByCoordinates(Xave, Yave, 0);

//Test
Switch = AllTrue(Knew.DoesIntersect(Ks));

//Out Puts Groups and their Number
grpPnts;
Knew;