Changeset 4062

Timestamp:

Dec 14, 2007, 12:12:08 PM (15 years ago)

Author:

Nicklas Nordborg

Message:

Fixes #837: Lowess plugin. Error: Sum of weigths in line_fit is not positive

Changed the error message to something more understandable.

File:

• trunk/src/plugins/core/net/sf/basedb/plugins/LowessNormalization.java (modified) (1 diff)

trunk/src/plugins/core/net/sf/basedb/plugins/LowessNormalization.java

@@ -602 +602 @@
     if (sumW <= 0)
     {
-      throw new BaseException("Sum of weigths in line_fit is not positive");
+      throw new BaseException("Sum of weigths in line_fit is not positive. " +
+          "This may happen if there are too few data points in a block group. Please " +
+          "increase the 'block group' parameter, or set it to 0 to include all blocks " +
+          "in a single group");
     }
     double denom = sumW * sumAA - sumA * sumA;