Printing array without commas - Printable Version

Printing array without commas - Printable Version

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Printing array without commas - pawlaczkaj - Apr-08-2018

Hello,
I have got this output from my script:

Output:
[[1.0, 2.0, 3.0], [4.0, 5.0, 6.0], [7.0, 8.0, 9.0]]

I want to cover it to:

Output:[[1.0  2.0  3.0]
 [4.0  5.0  6.0]
 [7.0  8.0  9.0]]

I tried:

a = np.asarray(a)

but output is:

Output:array([[1.0,  2.0,  3.0],
       [4.0,  5.0,  6.0],
       [7.0,  8.0,  9.0]])

How resolve this?

I found that

a = np.asarray

worked correctly, but there was a problem with command print. When I used:

print ("a", a)

it gave me

Output:('a', array([[1.0,  2.0,  3.0],
             [4.0,  5.0,  6.0],
             [7.0,  8.0,  9.0]])

But when I used:

print a

the output was:

Output:[[1.0  2.0  3.0]
 [4.0  5.0  6.0]
 [7.0  8.0  9.0]]

RE: Printing array without commas - Larz60+ - Apr-08-2018

If you try to print the array as an array, it will always contain comma's because that is how python represents the array contents.
You need to create a function that loops through the array and prints without commas.
Something like:

class PrintList:
    def print_list(self, aname):
        firstitem = True
        if isinstance(aname, list):
            print('[', end='')
            for item in aname:
                if isinstance(item, list):
                    if firstitem:
                        firstitem = False
                    else:
                        print()
                    self.print_list(item)
                else:
                    print(' {} '.format(item), end='')
            print(']', end = '')
        else:
            print('Not a list')

def tryit():
    p = PrintList()
    p.print_list([[1.0, 2.0, 3.0], [4.0, 5.0, 6.0], [7.0, 8.0, 9.0]])

if __name__ == '__main__':
    tryit()

test:

Output:[[ 1.0  2.0  3.0 ]
[ 4.0  5.0  6.0 ]
[ 7.0  8.0  9.0 ]]