ruby on rails - how to store multidimensional array value -

i have store can set directly follows

self.xxx_bias_store[i][j] = [7,11] 

where xxx can different names

how set using send. have tried

self.send("#{name}_biases_store[#{i}][#{j}]=".to_sym, [7,11]) 

but has no effect. interested in how retrieve value i.e.

send("#{name}_biases_store[#{i}][#{j}]".to_sym) 

i'm not quite sure why you're trying use send this, , looking @ comment i'm not convinced you're asking right question regardless, here's how works.

the methods you're concerned this:

class array   def [](index)     # element of array @ index   end    def []=(index, value)     # set element of array @ index value   end end 

thing[5] calls [] method argument 5 - is, sends method [] receiver thing argument 5. similarly, thing[5]=1 calls []= method arguments 5 , 1

a multi-dimensional array array made of other arrays, so...

thing = [[1,2], [3,4]] p thing.send(:[], 1) # => [3,4] p thing.send(:[], 1).send(:[], 0) # => 3 thing.send(:[], 1).send(:[]=, 0, 5) p thing # => [[1,2], [5,4]]