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Backtest 1990 (S & P 500)

For 1990:
Naive-Bayes: Positive, Up,   Prediction Count is 92
Naive-Bayes: Negative, Down, Prediciton Count is 161
Naive-Bayes: Total Accuracy is 51.0%
Naive-Bayes: Positive, Up,   effectiveness is 0.10797826086956523%
Naive-Bayes: Long-only effectiveness is -0.033332015810276644%
Naive-Bayes: Negative, Down, effectiveness is -0.11408074534161496%
For 1990:
Logistic-Regression: Positive, Up,   Prediction Count is 125
Logistic-Regression: Negative, Down, Prediciton Count is 128
Logistic-Regression: Positive Accuracy is 54.0%
Logistic-Regression: Negative Accuracy is 53.0%
Logistic-Regression: Total Accuracy is 51.0%
Logistic-Regression: Positive, Up,   effectiveness is 0.01638399999999997%
Logistic-Regression: Long-only effectiveness is -0.033332015810276644%
Logistic-Regression: Negative, Down, effectiveness is -0.08188281249999996%

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