weka分类结果分析
使用weka的M5算法进行分类,得到如下数据:
训练集:
=== Error on training data ===
Correlation coefficient 0.9449
Mean absolute error 37.0872
Root mean squared error 108.5924
Relative absolute error 24.4718 %
Root relative squared error 32.7766 %
Total Number of Instances 66333
=== Cross-validation ===
Correlation coefficient 0.9412
Mean absolute error 37.5665
Root mean squared error 112.0182
Relative absolute error 24.7869 %
Root relative squared error 33.8097 %
Total Number of Instances 66333
测试集:
=== Error on test data ===
Correlation coefficient 0.941
Mean absolute error 38.0273
Root mean squared error 114.7968
Total Number of Instances 22111
求版上达人帮忙分析一下,这些数据分别是什么含义?我该从什么哪些数据入手去看我这个数据是不是适合这个模型呢?