zhangstar333 opened a new pull request, #39929:
URL: https://github.com/apache/doris/pull/39929
## Proposed changes
the weight should be positive num, as have check the value valid use
DCHECK_GT(c._weight, 0) in Centroid;
```
void add(const Centroid& c) {
DCHECK_GT(c._weight, 0);
if (_weight != 0.0) {
_weight += c._weight;
_mean += c._weight * (c._mean - _mean) / _weight;
} else {
_weight = c._weight;
_mean = c._mean;
}
}
```
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