TabularData Framework: DataFrame Headers as a List in SwiftUI

Question

mlu82 OP

Created Sep ’22

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I can't figure out how to display a the headers for a DataFrame in SwiftUI.

According to this post, I am only able to display rows in SwiftUI. Or am I completely wrong? Is there a way to convert the headers from a DataFrame to an String Array [String]? e.g.,

dataframe.columns.map { col in col.name }

Answered by DTS Engineer in 727993022

Is there a way to convert the headers from a DataFrame to an String Array [String]?

Sure. The code you posted does exactly that. For example:

import Foundation
import TabularData

func main() {
    let csv = """
        Word,Popularity
        Hello,17
        Cruel,42
        World,5
        """
    let df = try! DataFrame(csvData: Data(csv.utf8))
    let names = df.columns.map { col in col.name }
    print(names)
    // prints: ["Word", "Popularity"]
}

main()

Is that not sufficient? If not, can you explain why?

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

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Answer 1

DTS Engineer OP

Apple

Sep ’22

Accepted Answer

Is there a way to convert the headers from a DataFrame to an String Array [String]?

Sure. The code you posted does exactly that. For example:

import Foundation
import TabularData

func main() {
    let csv = """
        Word,Popularity
        Hello,17
        Cruel,42
        World,5
        """
    let df = try! DataFrame(csvData: Data(csv.utf8))
    let names = df.columns.map { col in col.name }
    print(names)
    // prints: ["Word", "Popularity"]
}

main()

Is that not sufficient? If not, can you explain why?

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

2