Polymorphism of data series

Author: jecisc

src/DataFrame/DataSeries.class.st

@@ -126,6 +126,12 @@ DataSeries >> at: aKey transform: aBlock ifAbsent: exceptionBlock [
 	self at: aKey put: (aBlock value: oldValue).
 ]
 
+{ #category : #accessing }
+DataSeries >> atAll: aCollectionOfIndexes [
+
+	^ self withIndexSelect: [ :each :index | aCollectionOfIndexes includes: index ]
+]
+
 { #category : #accessing }
 DataSeries >> atIndex: aNumber [
 	^ self at: (self keys at: aNumber)