Commit Graph

16 Commits

Author SHA1 Message Date
3e8ce43dcb rename command and rename for melt (#3968) 2021-08-26 08:13:54 -05:00
02b2c55146 Rolling and cumulative commands (#3960)
* rolling and cumulative operations

* update polars to 0.15.1

* change reference in function
2021-08-24 09:10:29 -05:00
b873fa7a5f The zip command. (#3919)
We introduce it here and allow it to work with regular lists (tables with no columns) as well as symmetric tables. Say we have two lists and wish to zip them, like so:

```
[0 2 4 6 8] | zip {
  [1 3 5 7 9]
} | flatten

───┬───
 0 │ 0
 1 │ 1
 2 │ 2
 3 │ 3
 4 │ 4
 5 │ 5
 6 │ 6
 7 │ 7
 8 │ 8
 9 │ 9
───┴───
```

In the case for two tables instead:

```
[[symbol]; ['('] ['['] ['{']] | zip {
  [[symbol]; [')'] [']'] ['}']]
} | each {
  get symbol | $'($in.0)nushell($in.1)'
}

───┬───────────
 0 │ (nushell)
 1 │ [nushell]
 2 │ {nushell}
───┴───────────
```
2021-08-14 23:36:08 -05:00
463dd48180 Flexible dropping of rows (by desired row number) (#3917)
We very well support `nth 0 2 3 --skip 1 4` to select particular rows and skip some using a flag. However, in practice we deal with tables (whether they come from parsing or loading files and whatnot) where we don't know the size of the table up front (and everytime we have these, they may have different sizes). There are also other use cases when we use intermediate tables during processing and wish to always drop certain rows and **keep the rest**.

Usage:

```
... | drop nth 0
... | drop nth 3 8
```
2021-08-13 12:48:05 -05:00
38848082ae describe command (#3907) 2021-08-08 05:48:54 +12:00
63abe1cb3e Datetime commands (#3894)
* date and duration from nu

* date commands

* Import to feature flag

* corrected to-csv example

* corrected sample example
2021-08-05 17:18:53 -05:00
d54d7cc431 append dataframes (#3839) 2021-07-26 08:36:09 +12:00
f1ee9113ac All is a DataFrame (#3812)
* nuframe in its own type in UntaggedValue

* Removed eager dataframe from enum

* Dataframe created from list of values

* Corrected order in dataframe columns

* Returned tag from stream collection

* Removed series from dataframe commands

* Arithmetic operators

* forced push

* forced push

* Replace all command

* String commands

* appending operations with dfs

* Testing suite for dataframes

* Unit test for dataframe commands

* improved equality for dataframes
2021-07-25 22:01:54 +12:00
9b5db297a6 Replace command (#3823)
* replace command

* cargo fmt

* Signature correction
2021-07-22 08:45:46 -05:00
411435d68f Dataframe Shape command (#3805)
* size command to get dataframe info

* change command name to shape

* apply lint to file
2021-07-20 07:07:42 -05:00
af2b2c668d New take command (#3722)
* Type in command description

* filter name change

* Clean column name

* Clippy error and updated polars version

* Lint correction in file

* CSV Infer schema optional

* Correct float operations

* changes in series castings to allow other types

* Clippy error correction

* Removed lists from command signatures

* Added not command for series

* take command with args

* set with idx command
2021-07-05 11:46:53 +12:00
17008bb648 Removed list from dataframe command signatures (#3713)
* Type in command description

* filter name change

* Clean column name

* Clippy error and updated polars version

* Lint correction in file

* CSV Infer schema optional

* Correct float operations

* changes in series castings to allow other types

* Clippy error correction

* Removed lists from command signatures

* Added not command for series
2021-07-01 16:33:52 +12:00
c2f78aaf88 Adding all-trim option (with format and all-flag) (#3696)
* adding changes for all-trim option

* adding changes for the all-flag and format flag

* renaming modules - clippy warning
2021-06-28 05:42:15 +12:00
a3f119e0bd Add pathvar command (#3670)
* Add pathvar command

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Add pathvar command to context

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Add pathvar reset command

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Update help message

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Remove insert command

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Remove unused import

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Remove insert mod

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Support for windows path separator

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Clear clippy errors

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Remove empty file

Signed-off-by: nathom <nathanthomas707@gmail.com>

* Formatting

Signed-off-by: nathom <nathanthomas707@gmail.com>
2021-06-25 15:58:37 +12:00
b9f1371994 Series commands (#3652)
* new series commands

* clippy corrections
2021-06-20 10:59:39 +12:00
JT
a74d05061d Begin directory contrib docs and split commands (#3650)
* Begin directory contrib docs and split commands

* Fix unused import warning
2021-06-19 12:06:44 +12:00