Table 1.

Confusion matrix of sentiment analyses using random forest machine learning.

Prediction	Actual sentimenta, %
	Negative	Neutral	Positive
Negative	49.2	9.7	2.7
Neutral	23.2	0.1	1.5
Positive	27.6	90.2	95.8
Total	100	100	100

^aAccuracy=0.696.