Series.iloc

danfo.Series.iloc()

ParametersTypeDescriptionDefault

rows

Array or String slice

Array, string slice, index of row positions boolean mask to filter by.

Examples

.iloc() is primarily integer position based (from 0 to length-1 of the axis).

Allowed inputs are:

  • An integer, e.g. 5.

  • A list or array of integers, e.g. [4, 3, 0].

  • A boolean mask. E.g [ true, false, false ]

  • A string slice object with ints, e.g. "1:7"

Note: only **** the start label is included, and the end label is ignored.

.iloc will raiseIndexError if a requested indexer is out-of-bounds.

Indexing specific rows by index

const dfd = require("danfojs-node")

let s = new dfd.Series([12, 34, 2.2, 2, 30, 30, 2.1, 7])
s.iloc([0,5]).print()
╔═══╤════╗
║ 0 │ 12 ║
╟───┼────╢
║ 5 │ 30 ║
╚═══╧════╝

Index by a slice of row

The iloc function also accepts string slices of the form [start: end], e.g "[0: 5]". This will return all values from index positions 0 to 4.

const dfd = require("danfojs-node")

let s = new dfd.Series([12, 34, 2.2, 2, 30, 30, 2.1, 7])
s.iloc(["0:5"]).print()
╔═══╤═════╗
║ 0 │ 12  ║
╟───┼─────╢
║ 1 │ 34  ║
╟───┼─────╢
║ 2 │ 2.2 ║
╟───┼─────╢
║ 3 │ 2   ║
╟───┼─────╢
║ 4 │ 30  ║
╚═══╧═════╝

By specifying a start index in a slice, all values after that index are returned.

const dfd = require("danfojs-node")

let s = new dfd.Series([12, 34, 2.2, 2, 30, 30, 2.1, 7])
s.iloc(["5:"]).print()
╔═══╤═════╗
║ 5 │ 30  ║
╟───┼─────╢
║ 6 │ 2.1 ║
╟───┼─────╢
║ 7 │ 7   ║
╚═══╧═════╝

Slice Series by boolean condition

const dfd = require("danfojs-node")

let s = new dfd.Series([12, 34, 2.2, 2, 30, 30, 2.1, 7])
s.iloc(s.gt(20)).print()
╔═══╤════╗
║ 1 │ 34 ║
╟───┼────╢
║ 4 │ 30 ║
╟───┼────╢
║ 5 │ 30 ║
╚═══╧════╝

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