Details
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Bug
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Status: Closed
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Minor
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Resolution: Fixed
-
2.0
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None
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None
Description
It's currently possible to pass in so few rows (samples) that there isn't a row for each column (predictor). Does this look like the right thing to do?
Index: AbstractMultipleLinearRegression.java
===================================================================
--- AbstractMultipleLinearRegression.java (revision 786758)
+++ AbstractMultipleLinearRegression.java (working copy)
@@ -91,6 +91,9 @@
"dimension mismatch {0} != {1}",
(x == null) ? 0 : x.length,
(y == null) ? 0 : y.length);
+ } else if (x[0].length > x.length){
+ throw MathRuntimeException.createIllegalArgumentException(
+ "not enough data (" + x.length + " rows) for this many predictors (" + x[0].length + " predictors)");
}
}
