terms() for subcorpora

[ChristophLeonhardt]

These slides show a method to extract terms from a partition to then identify noisy terms.

This does not seem to work yet for subcorpora objects created with subset (using polmineR 0.8.6.9003).

m2008 <- subset("GERMAPARL", year == 2008 & speaker == "Angela Merkel" & interjection == FALSE)
terms(m2008, p_attribute = "word")

results in

Fehler in identical(p_attribute, x@p_attribute) :
kein Slot des Namens "p_attribute" für dieses Objekt der Klasse "plpr_subcorpus"

The error message is telling. terms() (for slice objects) checks early if the p-attribute passed in the function call is identical with a p-attribute in the p_attribute-slot of the subcorpus. But subcorpus has no p_attribute slot.

This still could be user error and I would be glad to learn how I could "enrich" these subcorpora with p_attributes if this would be the way to go.

[ablaette]

The method had been implemented for the slice virtual class, but the implementation actually only works for partition objects. So the method for subcorpus objects now relies on the method defined for partition.