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Add corr aggregate function - #1561
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houqp
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Jan 14, 2022
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why not support |
realno
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Jan 14, 2022
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liukun4515
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Jan 14, 2022
liukun4515
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LGTM
you can rebase the master, after the Clippy fixed
| if let ScalarValue::Float64(Some(c)) = covar { | ||
| if let ScalarValue::Float64(Some(s1)) = stddev1 { | ||
| if let ScalarValue::Float64(Some(s2)) = stddev2 { | ||
| return Ok(ScalarValue::Float64(Some(c / s1 / s2))); |
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They may be 0, pushed a fix. Thanks for finding this.
alamb
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Jan 16, 2022
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Thanks @realno ! |
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Which issue does this PR close?
This PR add the
corrfunction which is part of #1486Rationale for this change
Add correlation function to DataFusion.
What changes are included in this PR?
New function
corr(col1, co2)is added.Are there any user-facing changes?
New function
corr(col1, co2)is added.No breaking change.