SteveYurongSu commented on code in PR #5857:
URL: https://github.com/apache/iotdb/pull/5857#discussion_r869791960
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library-udf/src/main/java/org/apache/iotdb/library/drepair/util/ARFill.java:
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@@ -75,6 +76,14 @@ public void fill() {
mean_epsilon += epsilon;
var_epsilon += epsilon * epsilon;
}
+ try {
+ assert cnt_epsilon > 0d;
+ } catch (AssertionError e) {
+ System.out.println("Cannot fit AR(1) model. Please try another method.");
+ this.time = new long[] {0};
+ this.repaired = new double[] {0D};
Review Comment:
I think it's not necessary to do this
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