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/external/apache-commons-math/src/main/java/org/apache/commons/math/stat/regression/
DSimpleRegression.java88 private double ybar = 0; field in SimpleRegression
140 ybar = y; in addData()
143 double dy = y - ybar; in addData()
148 ybar += dy / (n + 1.0); in addData()
176 double dy = y - ybar; in removeData()
181 ybar -= dy / (n - 1.0); in removeData()