DataFrame.unique
Return unique values of DataFrame along an axis. Uniques are returned in order of appearance. Set-based unique, therefore does NOT sort.
danfo.DataFrame.unique(axis) [source]
Parameters | Type | Description | Default |
axis | Int | 0 for row axis, and 1 for column axis | 1 |
Returns:
return Object
Node
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Node
const dfd = require("danfojs-node")​let data = { "A": [-20, 30, 47.3, -20],"B": [34, -4, 5, 6] ,"C": [20, 20, 30, 30],"D": ["a", "b", "c", "c"] }​let df = new dfd.DataFrame(data)console.log(df.unique()) //defaults to axis 1
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Output
Output
{A: [ -20, 30, 47.3 ],B: [ 34, -4, 5, 6 ],C: [ 20, 30 ],D: [ 'a', 'b', 'c' ]}
Node
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Node
const dfd = require("danfojs-node")​let data = { "A": [-20, 30, 47.3, -20],"B": [34, -4, 5, 6] ,"C": [20, 20, 30, 30],"D": ["a", "b", "c", "c"] }​let df = new dfd.DataFrame(data)console.log(df.unique(axis=0));
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Output
Output
{'0': [ -20, 34, 20, 'a' ],'1': [ 30, -4, 20, 'b' ],'2': [ 47.3, 5, 30, 'c' ],'3': [ -20, 6, 30, 'c' ]}
Note: To get the number of unique elements along an axis, use DataFrame.nunique.​
Last updated 8 months ago