Comments (3)
Alternatively, if someone did want to use fields from another struct, perhaps an issue request for .struct.with_context()
? Although I'm not sure how far Ritchie wants to go with treating structs as miniframes.
from polars.
Can I close it now (with #16402 merged)?
from polars.
I think you can.
df = pl.DataFrame({
"item": [
{"name": "John", "age": 30, "car": None},
{"name": "Alice", "age": 65, "car": "Volvo"},
]
})
df.select(
pl.col("item").struct.with_fields(
pl.field("name").str.to_uppercase()
)
)
# shape: (2, 1)
# ┌──────────────────────┐
# │ item │
# │ --- │
# │ struct[3] │
# ╞══════════════════════╡
# │ {"JOHN",30,null} │
# │ {"ALICE",65,"Volvo"} │
# └──────────────────────┘
from polars.
Related Issues (20)
- Series constructor with NumPy datetime64 scalar returns incorrect results
- Request for new method argmax_horizontal HOT 4
- `pl.struct` inside `list.eval` produces different dtype if fields are named
- Add `Expr.scatter` HOT 3
- Example code for `group_by` iteration is wrong HOT 1
- `unpivot()` on an empty DataFrame creates two empty `variable` columns
- SQL expression panics on invalid query HOT 3
- Make series raw display output to not use single quotes to be consistent with the DataFrame raw display outputs. HOT 10
- ParquetWriter<CloudWriter> hangs when uploading to S3 HOT 2
- When using `.implode().list` in `GroupBy.agg`, the return type is list, not the original type of the value. HOT 2
- `Series.search_sorted` gives wrong answer when using expression arguments HOT 4
- Panic occurring when using streaming and limit with Parquet
- `Expr.replace` and `Expr.replace_strict` set "NO_DEFAULT" as a value HOT 1
- Parquet files cannot be read from pre-signed S3 URLs due to S3 forbidding HTTP HEAD HOT 8
- Wrong result when filtering categorical using `.is_in` in `scan_parquet` HOT 2
- `.over()` fails with `.get`. HOT 6
- Don't disable coalesce when joining on expressions HOT 3
- entered unreachable code when using collect_schema and concat HOT 1
- Use of write_ipc with file=None
- Examples of using `scan_csv` with cloud URIs HOT 3
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from polars.