In Ruby, how to read data column wise from a CSV file?

Question

I know how it is done row-wise

CSV.foreach(filename.csv) do |row|
  puts \"#{row}\"
end

But I am completely lost column wise?

Answer 1

Bored so decided to cook up an alternate solution here. Only works (here) if the first row has the max number of columns

columns = {}
rows.first.each_with_index do |col, i|
  columns[i] = []
end
rows.each do |row|
  row.each_with_index do |cell, i|
    columns[i] = columns[i] + [cell]
  end
end

Now you should be able to access each column by its index