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docs: Update group_by_dynamic example #11737

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Oct 14, 2023
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docs: Update group_by_dynamic example #11737

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e739d13
docs: Update `group_by_dynamic` example
stinodego Oct 14, 2023
041f747
Add cot docs
stinodego Oct 14, 2023
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16 changes: 5 additions & 11 deletions docs/src/python/user-guide/transformations/time-series/rolling.py
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Expand Up @@ -29,17 +29,11 @@
.to_frame()
)

out = (
df.group_by_dynamic("time", every="1mo", period="1mo", closed="left")
.agg(
[
pl.col("time").cumcount().reverse().head(3).alias("day/eom"),
((pl.col("time") - pl.col("time").first()).last().dt.days() + 1).alias(
"days_in_month"
),
]
)
.explode("day/eom")
out = df.group_by_dynamic("time", every="1mo", period="1mo", closed="left").agg(
pl.col("time").cumcount().reverse().head(3).alias("day/eom"),
((pl.col("time") - pl.col("time").first()).last().dt.days() + 1).alias(
"days_in_month"
),
)
print(out)
# --8<-- [end:group_by_dyn]
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1 change: 0 additions & 1 deletion docs/src/rust/user-guide/transformations/time-series/rolling.rs
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Expand Up @@ -86,7 +86,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
) + lit(1))
.alias("days_in_month"),
])
.explode([col("day/eom")])
.collect()?;
println!("{}", &out);
// --8<-- [end:group_by_dyn]
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1 change: 1 addition & 0 deletions py-polars/docs/source/reference/expressions/computation.rst
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Expand Up @@ -18,6 +18,7 @@ Computation
Expr.cbrt
Expr.cos
Expr.cosh
Expr.cot
Expr.cumcount
Expr.cummax
Expr.cummin
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1 change: 1 addition & 0 deletions py-polars/docs/source/reference/series/computation.rst
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Expand Up @@ -18,6 +18,7 @@ Computation
Series.cbrt
Series.cos
Series.cosh
Series.cot
Series.cummax
Series.cummin
Series.cumprod
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