Store tabular data on Swift

Question

What kind of data structure should I use that would allow me to store tabular data (and append new data to it), as well as operate over it (calc aggregations, etc).

Specifically I'm looking for something similar to pandas (for python). Right now I don't need to draw the data table but, only to store data.

For example, imagine I want to append values to a table every 5 seconds, so that, every hour I will aggregate the information into a new data structure.

Answer 1

Maybe this could help you?

struct Table<T>{
    typealias Columns = [T]
    typealias Rows = [Columns]
    private var data: Rows = []

    mutating func appendRow(row: Columns){
        data.append(row)
    }

    func getRow(index: Int) -> Columns?{
        return data[safe: index]
    }
}

var intTable = Table<Int>()
intTable.appendRow(row: [1,2,3,4])
intTable.appendRow(row: [1,2,3])

var anyTable = Table<Any>()
anyTable.appendRow(row: ["Hello World", 12])

Answer 2

Apple has made a framework for this called TabularData.

It allows you to import & export data from JSON & CSV files as well as programatically storing, sorting and summarising tabular data with simple statistics like element count, maximum, mininum, mean, and standard deviation.

Note that it only works on iOS 15.0+, macOS 12.0+, tvOS 15.0+, or watchOS 8.0+