Series.str.substr

Obtain the substring from a String element in a Series, by specifying the number of string to obtain starting from a specific index.

danfo.Series.str.substr(startIndex, num) [source]

Parameters

Type

Description

Default

startIndex

Number

specify the index to start obtaining the substring

0

num

Number

The number of character to obtain starting from the startIndex

1

Returns:

return Series

Example

Obtain substring( containing 4 characters) starting from the third character (2nd index).

const dfd = require("danfojs-node")
let data = ['lower part ', ' CAPITALS city', ' this is a sentence', ' SwAp CaSe']
let sf = new dfd.Series(data)
sf.str.substr(2, 4).print()
Output
Output
╔═══╤══════════════════════╗
║ │ 0
╟───┼──────────────────────╢
0 │ wer ║
╟───┼──────────────────────╢
1APIT
╟───┼──────────────────────╢
2 │ his ║
╟───┼──────────────────────╢
3 │ SwAp ║
╚═══╧══════════════════════╝