Concatanating array by While on Python
Question: I had some question on python,

I am trying to write something, where after each raw-input , I should input
into program some data (with array form). Then this data (arrays 2 dimensioanl
) should be added to the other 2 D array Full of zeros. Then when I input the
second data (it should be again changed to 2 D array) and must be added to
array Which already contain the array with Zeros and array from input). And so
, after each input , array should be added already created arrays. Here is the
code.

    
    
    from numpy import *
    
    var=zeros(shape=(1,11)) #making 2D array with zeros
    
    while True: 
    
        file=raw_input("write data file name or path")
    
        c=open(file, 'r')
        ArrayStr=loadtxt(c, dtype='S',) #making array
    
        var=vstack((ArrayStr, var)) # concatantaing array 
    print var
    

So finally I am getting array, which have only 2 arrays concatanatted (arrays
with zeros and last inputted data array)

Thanks for attention and help


Answer: **Working code**

_**in1.txt_**

    
    
    ATOM
    1
    C1
    POS
    X
    1
    16.774
    117.860
    10.374
    1.00
    0.00
    

_**in2.txt_**

    
    
    ATOM
    2
    C2
    POS
    X
    2
    18.774
    17.860
    30.374
    2.00
    0.00
    

**Code**

    
    
    import numpy
    
    zeros = numpy.zeros(shape=(1,11)) #making 2D array with zeros
    
    var = None
    
    for i in range(1, 3):
        i1 = open("in" + str(i) + ".txt")
    
        a = numpy.loadtxt(i1, dtype='S')
    
        if var is None:
            var = numpy.vstack((a, zeros))
        else:
            var = numpy.vstack((var, a, zeros))
    
    print var
    

**Output**

    
    
    >>> 
    [['ATOM' '1' 'C1' 'POS' 'X' '1' '16.774' '117.860' '10.374' '1.00' '0.00']
     ['0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0']
     ['ATOM' '2' 'C2' 'POS' 'X' '2' '18.774' '17.860' '30.374' '2.00' '0.00']
     ['0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0' '0.0']]
    >>> 
    

