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Backtest 1997 (S & P 500)

For 1997:
Naive-Bayes: Positive, Up,   Prediction Count is 117
Naive-Bayes: Negative, Down, Prediciton Count is 136
Naive-Bayes: Total Accuracy is 51.0%
Naive-Bayes: Positive, Up,   effectiveness is 0.2446837606837606%
Naive-Bayes: Long-only effectiveness is 0.11717391304347821%
Naive-Bayes: Negative, Down, effectiveness is 0.007477941176470596%
For 1997:
Logistic-Regression: Positive, Up,   Prediction Count is 129
Logistic-Regression: Negative, Down, Prediciton Count is 124
Logistic-Regression: Positive Accuracy is 59.0%
Logistic-Regression: Negative Accuracy is 61.0%
Logistic-Regression: Total Accuracy is 53.0%
Logistic-Regression: Positive, Up,   effectiveness is 0.26823255813953484%
Logistic-Regression: Long-only effectiveness is 0.11717391304347821%
Logistic-Regression: Negative, Down, effectiveness is -0.03997580645161293%

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