arrays - 使用数组的索引 0 子索引作为数据表中哈希的键

Question

目前我正在编写这段小代码。我需要使用 0 索引作为键，然后下一个元素需要显示为值，例如以下示例:

[{"Nombre"=>"Rodrigo García", "Edad"=>13, 
"Genero"=>"Masculino", "Grupo"=>"Primero", "Calificaciones"=>[9, 9, 7, 6, 
 8]},... #for each one of the people represented in the table

我尝试过使用 zip 和转置，但我不能仅从一个数组中使用。我将衷心感谢您的帮助。先感谢您!

table = [["Nombre","Edad","Genero","Grupo","Calificaciones"],
        ["Rodrigo Garcia",13,"Masculino","Primero",[9, 9, 7, 6, 8]],
        ["Fernanda Gonzalez",12,"Femenino","Tercero",[6, 9, 8, 6, 8]],
        ["Luis Perez",13,"Masculino","Primero",[8, 7, 7, 9, 8]],
        ["Ana Espinosa",14,"Femenino","Segundo",[9, 9, 6, 8, 8]],
        ["Pablo Moran",11,"Masculino","Segundo",[7, 8, 9, 9, 8]]]

p Hash[table.zip]
puts
puts
p table.transpose

Answer 1

无论如何，如果您要处理大型数据集，似乎您可能需要进行一些重构:

head  = ["Nombre","Edad","Genero","Grupo","Calificaciones"]
table = [["Rodrigo Garcia",13,"Masculino","Primero",[9, 9, 7, 6, 8]],
        ["Fernanda Gonzalez",12,"Femenino","Tercero",[6, 9, 8, 6, 8]],
        ["Luis Perez",13,"Masculino","Primero",[8, 7, 7, 9, 8]],
        ["Ana Espinosa",14,"Femenino","Segundo",[9, 9, 6, 8, 8]],
        ["Pablo Moran",11,"Masculino","Segundo",[7, 8, 9, 9, 8]]]

ret = table.map {|row| head.zip(row) }

# or maybe better, convert to a hash, to retrieve data more easily.

ret2= table.map {|row| head.zip(row).to_h }

puts ret   #=> [[["Nombre", "Rodrigo Garcia"], ["Edad", 13], ["Genero", "Masculino"]...
puts re2   #=> [{"Nombre"=>"Rodrigo Garcia", "Edad"=>13, "Genero"=>"Masculino", ...