statistics模块

statistics模块

Author: layne0031

day043-statistics/statistics.py

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+#计算平均数
+>>> statistics.mean([1, 2, 3, 4, 5])
+
+>>> from fractions import Fraction as F
+>>> statistics.mean([F(4, 7), F(4, 21), F(5, 4), F(1, 4)])
+
+>>> from decimal import Decimal as D
+>>> statistics.mean([D("0.5"), D("0.78"), D("0.88"), D("0.988")])
+
+
+#计算调和平均数
+>>> statistics.harmonic_mean([4, 5, 7])
+
+
+#计算中值
+>>> statistics.median([1, 4, 7])
+
+>>> statistics.median([1, 4, 7, 10])
+
+
+#计算中小值
+>>> statistics.median_low([1, 4, 7])
+
+>>> statistics.median_low([1, 4, 7, 10])
+
+
+#计算中大值
+>>> statistics.median_high([1, 4, 7])
+
+>>> statistics.median_high([1, 4, 7, 10])
+
+
+#计算中位数
+>>> statistics.median_grouped([1, 2, 2, 3, 4, 4, 4, 4, 4, 5])
+
+>>> statistics.median_grouped([3, 4, 4, 5, 6], interval=1)
+
+>>> statistics.median_grouped([1, 3, 5, 5, 7], interval=2)
+
+
+#计算众数
+>>> statistics.mode([1, 1, 2, 3, 3, 3, 3, 4])
+
+>>> statistics.mode(["red", "blue", "blue", "blue", "green", "green", "red"])