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f37f29b441
* start playing with ways to use the uniq command * WIP * Got uniq working, but still need to figure out args issue and add tests * Add some tests for uniq * fmt * remove commented out code * Add documentation and some additional tests showing uniq values and rows. Also removed args TODO * add changes that didn't get committed * whoops, I didn't save the docs correctly... * fmt * Add a test for uniq with nested json * Add another test * Fix unique-ness when json keys are out of order and make the test json more complicated
37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
# uniq
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Returns unique rows or values from a dataset.
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## Examples
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Given a file `test.csv`
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```
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first_name,last_name,rusty_at,type
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Andrés,Robalino,10/11/2013,A
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Andrés,Robalino,10/11/2013,A
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Jonathan,Turner,10/12/2013,B
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Yehuda,Katz,10/11/2013,A
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```
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```
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> `open test.csv | uniq`
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━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━
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# │ first_name │ last_name │ rusty_at │ type
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───┼────────────┼───────────┼────────────┼──────
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0 │ Andrés │ Robalino │ 10/11/2013 │ A
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1 │ Jonathan │ Turner │ 10/12/2013 │ B
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2 │ Yehuda │ Katz │ 10/11/2013 │ A
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━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━
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```
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```
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> `open test.csv | get type | uniq`
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━━━┯━━━━━━━━━
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# │ <value>
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───┼─────────
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0 │ A
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1 │ B
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━━━┷━━━━━━━━━
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```
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