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Danfo.js Documentation
Getting Started
API reference
General Functions
Input/Output
Series
Dataframe
Creating a DataFrame
DataFrame.sort_index
DataFrame.append
DataFrame.nunique
DataFrame.tensor
DataFrame.print
DataFrame.to_csv
DataFrame.to_json
DataFrame.to_excel
DataFrame.sort_values
DataFrame.set_index
DataFrame.reset_index
DataFrame.rename
DataFrame.drop
DataFrame.astype
DataFrame.shape
DataFrame.axis
DataFrame.ndim
DataFrame.values
DataFrame.select_dtypes
DataFrame.ctypes
DataFrame.index
DataFrame.loc
DataFrame.iloc
DataFrame.head
DataFrame.tail
DataFrame.sample
DataFrame.add
DataFrame.sub
DataFrame.mul
DataFrame.div
DataFrame.pow
DataFrame.mod
DataFrame.mean
DataFrame.median
DataFrame.min
DataFrame.max
DataFrame.std
DataFrame.var
DataFrame.count
DataFrame.round
DataFrame.cumsum
DataFrame.cummin
DataFrame.cummax
DataFrame.cumprod
DataFrame.copy
DataFrame.describe
DataFrame.sum
DataFrame.abs
DataFrame.query
DataFrame.addColumn
DataFrame.groupby
DataFrame.column
DataFrame.fillna
DataFrame.isna
DataFrame.dropna
DataFrame.apply
DataFrame.apply_map
DataFrame.It
DataFrame.gt
DataFrame.le
DataFrame.ge
DataFrame.ne
DataFrame.eq
DataFrame.replace
Configuration Options
Plotting
Groupby
User Guides
Building Data Driven Applications with Danfo.js - Book
Contributing Guide
Release Notes
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DataFrame.index
The index (row labels) of the DataFrame.
danfo.DataFrame.index [source]

Examples

Returns auto-generated index of a DataFrame
Node
Browser
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const dfd = require("danfojs-node")
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​
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let data = {"A": [-20.1, 30, 47.3, -20],
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"B": [34, -4, 5, 6],
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"C": [20, -20, 30, -40]}
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let df = new dfd.DataFrame(data)
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​
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console.log(df.index);
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​
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Output
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[0, 1, 2, 3]
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​
Node
Browser
1
const dfd = require("danfojs-node")
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​
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let data = {"A": [-20.1, 30, 47.3, -20],
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"B": [34, -4, 5, 6],
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"C": [20, -20, 30, -40]}
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let df = new dfd.DataFrame(data, {index: ["r1", "r2", "r3", "r4"])
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​
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console.log(df.index);
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1
​
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Output
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[ 'r1', 'r2', 'r3', 'r4' ]
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