DataFrame.sortValues
Sort a Dataframe in ascending or descending order by a specified column name.
danfo.DataFrame.sortValues(by, options) [source]
Parameters
Type
Description
Default
This key can be either a single column name or a single array of the same length as the calling DataFrame.
Optional configuration:
ascending: Order of sorting
inplace: Boolean indicating whether to perform the operation inplace or not. Defaults to false
{
ascending: true, inplace: false
}
Examples
Sort DataFrame by a column in ascending order
const dfd = require("danfojs-node")
let data = {
"A": [-20, 30, 47.3],
"B": [34, 5, 6],
"C": [20, 3, 30]
}
let df = new dfd.DataFrame(data)
df.sortValues("C", { inplace: true })
df.print()
โโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโ
โ โ A โ B โ C โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 1 โ 30 โ 5 โ 3 โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 0 โ -20 โ 34 โ 20 โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 2 โ 47.3 โ 6 โ 30 โ
โโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโ
Sort DataFrame by a column in descending order
const dfd = require("danfojs-node")
let data = { "A": [-20, 30, 47.3],
"B": [34, 5, 6],
"C": [20, 3, 30] }
let df = new dfd.DataFrame(data)
df.sortValues("C", { ascending: false, inplace: true })
df.print()
โโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโคโโโโโโโโโโโโโโโโโโโโ
โ โ A โ B โ C โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 0 โ 47.3 โ 6 โ 30 โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 2 โ -20 โ 34 โ 20 โ
โโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโข
โ 1 โ 30 โ 5 โ 3 โ
โโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโงโโโโโโโโโโโโโโโโโโโโ