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, options) [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
options
Object
inplace: Whether to perform the operation in-place or not.
{
inplace: false
}
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
╔═══╤══════════════════════╗
║ │ 0
╟───┼──────────────────────╢
0 │ wer ║
╟───┼──────────────────────╢
1APIT
╟───┼──────────────────────╢
2 │ his ║
╟───┼──────────────────────╢
3 │ SwAp ║
╚═══╧══════════════════════╝
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