DataFrame.sample

Return a random sample of rows from DataFrame.

danfo.DataFrame.sample(num, seed) [source]
Parameters
Type
Description
Default
num
Int
The number of rows to return. Defaults to -1, which shuffles and return all rows. 
-1
seed
int
An integer specifying the random seed that will be used to create the distribution. Ensures reproducibility of generated samples. 
1
Returns:
       return {Promies} resolves to DataFrame
Examples
Node
Browser
Node
const dfd = require("danfojs-node")
​
async function load_data() {
  let data = {
    Name: ["Apples", "Mango", "Banana", "Pear"],
    Count: [21, 5, 30, 10],
    Price: [200, 300, 40, 250],
  };
​
  let df = new dfd.DataFrame(data);
  let s_df = await df.sample(2);
  s_df.print();
  
}
​
load_data()
Browser
​
Output
Output
╔═══╤═══════════════════╤═══════════════════╤═══════════════════╗
║   │ Name              │ Count             │ Price             ║
╟───┼───────────────────┼───────────────────┼───────────────────╢
║ 0 │ Apples            │ 21                │ 200               ║
╟───┼───────────────────┼───────────────────┼───────────────────╢
║ 2 │ Banana            │ 30                │ 40                ║
╚═══╧═══════════════════╧═══════════════════╧═══════════════════╝

DataFrame.tail

DataFrame.add

Last updated 4 months ago

Parameters	Type	Description	Default
num	Int	The number of rows to return. Defaults to -1, which shuffles and return all rows.	-1
seed	int	An integer specifying the random seed that will be used to create the distribution. Ensures reproducibility of generated samples.	1