def get2DArray(oneDarray) #oneDarray is of dimention 1Xn^2
###what will be the code here??
return twoDarray
end
oneDarray is a one dimensional array, and is of dimention 1Xn^2, I would
like to assign this to two dimentional array namd twoDarray so that I
can get the first row as twoDarray[i].
for example:
oneDarray=[1,2,3,4,5,6,7,8,9]
gives
twoDarray=[[1,2,3],[4,5,6],[7,8,9]]
and twoDarray[1]=[4,5,6]
Help me to write code at ###
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Hi,
Calculate the square root of the lenght of the original array and then
use Enumerable#each_slice to create an array of "rows".
For example:
one_d_array = (1..9).to_a
dim = Math.sqrt(one_d_array.length).to_i
two_d_array = one_d_array.each_slice(dim).to_a
p two_d_array
However, if you actually want to do matrix calculations, you should use
the Matrix class instead of an array:
http://ruby-doc.org/stdlib-1.9.3/libdoc/matrix/rdoc/Matrix.html
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Array#each_slice method is helpful to u.
oneDarray.each_slice(3).to_a
=> [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
2012/8/13 ajay paswan <lists@ruby-forum.com>
def get2DArray(oneDarray) #oneDarray is of dimention 1Xn^2
###what will be the code here??
return twoDarray
endoneDarray is a one dimensional array, and is of dimention 1Xn^2, I would
like to assign this to two dimentional array namd twoDarray so that I
can get the first row as twoDarray[i].for example:
oneDarray=[1,2,3,4,5,6,7,8,9]
gives
twoDarray=[[1,2,3],[4,5,6],[7,8,9]]
and twoDarray[1]=[4,5,6]Help me to write code at ###
--
Posted via http://www.ruby-forum.com/\.
--
----------------------------------------
Sangil Jung.
+82.10.6402-4639
http://humbroll.com
*What* is not clear? Which method or syntax don't you understand?
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not clear.
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