J
Jim Carter
I have a @data_array variable, which is a 2 dimensional array. If I
run a @data_array.inspect, I get the entire 2D array in string form
reporting back to me.
But I want to pick off a specific column, ie., create a column vector
from one of the columns on the array. If I do something like
@data_array.length, I get an undefined method length, probably because
@data_array simply reference the Array ID?? If I do an
@data_array.inspect.length, this appears to give me the number of
elements in the complete array versus the actual length of the array.
I need to know the length, to read back a vector (I believe).
Is there already a method existing to do this, or do I need to go down
the road of determining 2d array length, to read back a specific column
of a 2d array through a looping structure?
Thanks
run a @data_array.inspect, I get the entire 2D array in string form
reporting back to me.
But I want to pick off a specific column, ie., create a column vector
from one of the columns on the array. If I do something like
@data_array.length, I get an undefined method length, probably because
@data_array simply reference the Array ID?? If I do an
@data_array.inspect.length, this appears to give me the number of
elements in the complete array versus the actual length of the array.
I need to know the length, to read back a vector (I believe).
Is there already a method existing to do this, or do I need to go down
the road of determining 2d array length, to read back a specific column
of a 2d array through a looping structure?
Thanks