How to create an array of vertical arrays?

Ruby
1

Hi!

I want to create something that, in my mind, is array of vertical
arrays. Something like this:

Code Name Gender
1 Anne F
2 John M
3 Jack M

How can i manipulate data inside a multidimensional array so that its
subarrays are printed like this?

I have very little knowledge about Ruby. I’ve tried hard to find an
answer for this on the net, but couldn’t find it.

Thanks in advance for any feedback!

2

I hope this is usefull for @Caio Graco

2.0.0-p481 :041 > test = Array.new(3,Array.new(1))
=> [[nil], [nil], [nil]]
2.0.0-p481 :042 > test = %w[[43][sai][M]]
=> ["[43][sai][M]"]
2.0.0-p481 :043 > test = %w[[41][prasanna][F]]
=> ["[41][prasanna][F]"]

3

Caio Graco wrote in post #1161260:

Hi!

I want to create something that, in my mind, is array of vertical
arrays. Something like this:

Code Name Gender
1 Anne F
2 John M
3 Jack M

How can i manipulate data inside a multidimensional array so that its
subarrays are printed like this?

I have very little knowledge about Ruby. I’ve tried hard to find an
answer for this on the net, but couldn’t find it.

Thanks in advance for any feedback!

a = %w[code,name,gender]
b = %w[1,sai,f]
=> [“1,sai,f”]

4

Caio Graco wrote in post #1161260:

Hi!

I want to create something that, in my mind, is array of vertical
arrays. Something like this:

Code Name Gender
1 Anne F
2 John M
3 Jack M

========================================
data=[
[1,2,3],
%w{Anne Jonh Jack},
%w{F M M}
]
p data
puts “”

(0…data.first.size).each do |i|
puts (0…data.size).map { |col| data[col][i] }.join("\t")
end

ruby e.rb
[[1, 2, 3], [“Anne”, “Jonh”, “Jack”], [“F”, “M”, “M”]]

1 Anne F
2 Jonh M
3 Jack M

5

Write this to a file & run it. The output is what you have asked for:

data=[]
new_data=[1,“Anne”,“F”]
data.push(new_data)
new_data=[2,“John”,“M”]
data.push(new_data)
new_data=[3,“Jack”,“M”]
data.push(new_data)

puts “Code\tName\tGender”

data.each do |entry|
entry.each do |value|
print value
print “\t”
end
puts
end

6

Regis d’Aubarede wrote in post #1161303:

Caio Graco wrote in post #1161260:

Hi!

I want to create something that, in my mind, is array of vertical

Oups!
array.transpose do the hard work.

So this do the job:

####################################################
data=[
[1,2,3],
%w{Anne Jonh Jack},
%w{F M M}
]
puts data.transpose.map {|line| line.join("\t")}.join("\n")
####################################################