data mining - WEKA software analysis for calculating total accuracy -


hi using weka analyze data. having problem how calculate total accuracy output data.

the partial output bellow

detailed accuracy class

           tp rate   fp rate   precision   recall  f-measure   roc area  class              0.85      0.415      0.794     0.85      0.821      0.762    tested_negative              0.585     0.15       0.676     0.585     0.627      0.762    tested_positive

weighted avg. 0.758 0.323 0.753 0.758 0.754 0.762

from above total accuracy?

what's confusion matrix weka output?

in general case, necessary know calculate accuracy.

and yes, think "total accuracy" in case means accuracy: http://upload.wikimedia.org/math/8/5/f/85fb106488e3cb8c02e397c917222ad4.png (from http://en.wikipedia.org/wiki/accuracy_and_precision)


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