fix scatter axes labels #146

[taylorkmw]

No description provided.

[taylorkmw]

>>> a = Table([[10, 20, 30, 40, 50, 60, 70, 80,],
               [2, 13, 8, 5, 3, 2, 0, 1,],
               [3, 10, 13, 12, 2, 0, 0, 0,]],
              ['Age', 'Male Counts', 'Female Counts'])
>>> print(a)
Age  | Male Counts | Female Counts
10   | 2           | 3
20   | 13          | 10
30   | 8           | 13
40   | 5           | 12
50   | 3           | 2
60   | 2           | 0
70   | 0           | 0
80   | 1           | 0
>>> a.bar('Age')

>>>a.barh('Age')

>>>a.plot('Age')

[taylorkmw]

All the methods that use _visualize (plot, scatter, bar, and barh) use both x and y axes labels. Depending on how _visualize will be used in the future, it may be better to redefine _visualize's method signature to accept x_label and y_labels as params instead of simply labels.

[SamLau95]

@taylorkmw Yeah, that's a great idea. Can you do that in another PR? I'm gonna merge this one now, thanks for the fast turnaround :)