[julia-users] How to define a dynamic table (matrix - with four columns) ?

[Miri Or]

Hi
I need to write a program in julia language. I have to define a *matrix *with 
four columns and  i need to add to that rows during the program execution, 
that means in a *dynamically *way. 
*matrix[n][4]*, and i do not know the number of lines in the matrix at the 
beginning of the program.
 
It is very urgent, hope you help me quickly
Thank you!