Series.set_index

danfo.series.set_index(options) [source]
Parameter
Type
Description
Default
index
Array
new index values
​
options
Object
inplace: Boolean indicating whether to perform the operation inplace or not. Defaults to false
{
inplace: false
}
Returns: Series
Example
Node
Browser
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const dfd = require("danfojs-node")
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let data = [{ alpha: "A", count: 1 }, { alpha: "B", count: 2 }, { alpha: "C", count: 3 }]
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let sf = new dfd.Series(data)
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sf.print()
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​
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let sf_new = sf.set_index({ "index": ["one", "two", "three"] })
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sf_new.print()
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1
​
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Output
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╔═══╤═════════════════════════╗
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║ 0 │ {"alpha":"A","count":1} ║
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╟───┼─────────────────────────╢
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║ 1 │ {"alpha":"B","count":2} ║
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╟───┼─────────────────────────╢
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║ 2 │ {"alpha":"C","count":3} ║
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╚═══╧═════════════════════════╝
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​
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╔═══════╤═════════════════════════╗
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║ one   │ {"alpha":"A","count":1} ║
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╟───────┼─────────────────────────╢
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║ two   │ {"alpha":"B","count":2} ║
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╟───────┼─────────────────────────╢
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║ three │ {"alpha":"C","count":3} ║
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╚═══════╧═════════════════════════╝
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Node
Browser
1
const dfd = require("danfojs-node")
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​
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let data = ["Humans","Life","Meaning","Fact","Truth"]
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let sf = new dfd.Series(data)
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let sf_new = sf.set_index({ "index": ["H", "L", "M","F","T"] })
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sf_new.print()
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1
​
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Output
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╔═══╤══════════════════════╗
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║   │ 0                    ║
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╟───┼──────────────────────╢
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║ H │ Humans               ║
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╟───┼──────────────────────╢
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║ L │ Life                 ║
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╟───┼──────────────────────╢
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║ M │ Meaning              ║
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╟───┼──────────────────────╢
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║ F │ Fact                 ║
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╟───┼──────────────────────╢
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║ T │ Truth                ║
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╚═══╧══════════════════════╝
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Set index in-place
Node
Browser
1
const dfd = require("danfojs")
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​
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let data = [1, 2, 3, 4, 5, 6]
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let sf = new dfd.Series(data)
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sf.set_index({ index: ["one", "two", "three", "four", "five", "six"], inplace: true })
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sf.print()
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1
​
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Output
1
╔═══════╤═══╗
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║ one   │ 1 ║
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╟───────┼───╢
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║ two   │ 2 ║
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╟───────┼───╢
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║ three │ 3 ║
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╟───────┼───╢
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║ four  │ 4 ║
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╟───────┼───╢
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║ five  │ 5 ║
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╟───────┼───╢
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║ six   │ 6 ║
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╚═══════╧═══╝
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​
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Series.map

Series.reset_index

Last modified 13d ago

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Contents

Set index in-place