Series.set_index
Assign new Index to Series
danfo.series.set_index(kwargs) [source]
Parameters | Type | Description | Default |
kwargs["index"] | Array | index to replace the former index | |
kwargs["inplace"] | Boolean | return new series or not | false |
Returns: Series
Example
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const dfd = require("danfojs-node")let data = [{ alpha: "A", count: 1 }, { alpha: "B", count: 2 }, { alpha: "C", count: 3 }]let sf = new dfd.Series(data)let sf_new = sf.set_index({ "index": ["one", "two", "three"] })sf_new.print()
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╔═══════╤══════════════════════╗║ │ 0 ║╟───────┼──────────────────────╢║ one │ {"alpha":"A","cou... ║╟───────┼──────────────────────╢║ two │ {"alpha":"B","cou... ║╟───────┼──────────────────────╢║ three │ {"alpha":"C","cou... ║╚═══════╧══════════════════════╝
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const dfd = require("danfojs-node")let data = ["Humans","Life","Meaning","Fact","Truth"]let sf = new dfd.Series(data)let sf_new = sf.set_index({ "index": ["H", "L", "M","F","T"] })sf_new.print()
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╔═══╤══════════════════════╗║ │ 0 ║╟───┼──────────────────────╢║ H │ Humans ║╟───┼──────────────────────╢║ L │ Life ║╟───┼──────────────────────╢║ M │ Meaning ║╟───┼──────────────────────╢║ F │ Fact ║╟───┼──────────────────────╢║ T │ Truth ║╚═══╧══════════════════════╝
set index without creating a new series by using inplace = true
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const dfd = require("danfojs")let data = [1,2,3,4,5,6]let sf = new dfd.Series(data)sf.set_index({ "index": ["one", "two", "three", "four", "five", "six"], "inplace": true })sf.print()
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╔═══════╤══════════════════════╗║ │ 0 ║╟───────┼──────────────────────╢║ one │ 1 ║╟───────┼──────────────────────╢║ two │ 2 ║╟───────┼──────────────────────╢║ three │ 3 ║╟───────┼──────────────────────╢║ four │ 4 ║╟───────┼──────────────────────╢║ five │ 5 ║╟───────┼──────────────────────╢║ six │ 6 ║╚═══════╧══════════════════════╝
Last updated 12 months ago