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prevent divding by zero when number of zones is 1 in csvexport

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This commit is contained in:
KristofferC 2023-05-17 14:20:20 +02:00
parent c79154c87b
commit 1fc33b9389
1 changed files with 3 additions and 1 deletions
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4
csvexport/src/csvexport.cpp
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@ -337,7 +337,9 @@ int main(int argc, char** argv)
const auto ss = zone_data.sumSq
- 2. * zone_data.total * avg
+ avg * avg * sz;
const auto std = sqrt(ss / (sz - 1));
double std = 0;
if( sz > 1 )
std = sqrt(ss / (sz - 1));
values[9] = std::to_string(std);
std::string row = join(values, args.separator);