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  3. Introduction to Natural Language Processing in R

Exercise

Confusion matrices

You have just finished creating a classification model. This model predicts whether tweets were created by a left-leaning (democrat) or right-leaning (republican) tweet bot. You have made predictions on the test data and have the following result:

Predictions Left Right
Left 350 157
Right 57 436

Use the confusion matrix above to answer questions about the models accuracy.

Instructions

100 XP
  • What percentage of tweets did you successfully label as Left?
  • What percentage of tweets did you successfully label as Right?
  • What percentage of tweets did you successfully label?