DataFrame.rename

Change axis labels. Object values must be unique (1-to-1). Labels not contained in a dict / Series will be left as-is. Extra labels listed don’t throw an error.

danfo.DataFrame.rename(mapper, options)

Parameters
Type
Description
Default

mapper

Object

Labels and transformations to apply to that axis’ values.

options

Object

axis: row=0, columns=1.

inplace: Boolean indicating whether to perform the operation inplace or not. Defaults to false

{

axis : 1,

inplace : false

}

Examples

Rename columns

By setting inplace to true, the original DataFrame is modified and nothing is returned. To not modify the original DataFrame and return a new one, set inplace to false or leave it as default.

const dfd = require("danfojs-node")

let data = {
    "A": [-20, 30, 47.3],
    "B": [34, -4, 5],
    "C": [20, 2, 30]
}


let df = new dfd.DataFrame(data)
df.rename({ "A": "new_name" }, { inplace: true })
df.print()

Rename more the one column at time

Rename index by labels

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