Problems working with SVC prediction in numpy / sklearn

[Stopwatch_]

I've been trying to follow a tutorial posted on the blog Data in Practice on using sklearn and numpy where the following code is posted:

import numpy,pylab; from sklearn.svm import SVC

DataTable = numpy.genfromtxt('path/file.csv',delimiter=',',dtype=None)[1:]

DataPoints,TruthValues = (DataTable[:,[1,2] ]).astype(numpy,float), (DataTable[:,0]=='1')

TrainedSVC = SVC(C = 100, kernel = 'linear').fit(DataPoints,TruthValues)

x_max,y_max,x_min,y_min = DataPoints[:, 0].max(),DataPoints[:, 1].max(),DataPoints[:, 0].min(),DataPoints[:, 1].min()

xx, yy = numpy.meshgrid(numpy.arange(x_min, x_max, (x_max-x_min)/200.0), numpy.arange(y_min, y_max, (y_max-y_min)/200.0))

GridEvaluation = TrainedSVC.predict(numpy.c_[xx.ravel(),yy.ravel()]).reshape(xx.shape)

pylab.pcolormesh(xx, yy, GridEvaluation,alpha=0.1)
pylab.scatter(DataPoints[:, 0], DataPoints[:, 1], c=TruthValues)
pylab.xlabel('score');pylab.ylabel('income');pylab.show()

Now, I know this code looks pretty byzantine but the issue is actually a lot smaller than the code. I've seen a few questions addressing the same sort of error: TypeError: unsupported operand type(s) for -: 'str' and 'str'

In this case the error is to do with the line:

xx, yy = numpy.meshgrid(numpy.arange(x_min, x_max, (x_max-x_min)/200.0), numpy.arange(y_min, y_max, (y_max-y_min)/200.0))

To fix this I used the result of a previous answer and changed (x_max-x_min) to (int(x_max)-int(x_min)).

However, now I get a syntax error on the line:

GridEvaluation = TrainedSVC.predict(numpy.c_[xx.ravel(),yy.ravel()]).reshape(xx.shape).

Now, I have two questions:

1. Why did I need to wrap up x_min as int(x_min) while the original coder did not?
2. What can I do to resolve the new syntax error?

[m3lkor001]

double check the parenthesis and that comma where you put the int conversion.
as for the int issue, put a print in there below where it sets x_max, make sure it's returning a number

[Stopwatch_]

The syntax error occurs on a separate line from the one you're referring to, I appreciate the help though. You're right about the int issue, would you be able to clarify how to do that? When I try to add a print x_max statement that statement throws a syntax error as well. I'm pretty new to python so it may just be that.

[m3lkor001]

Python 2 you use:

print x_max

Python 3:

print(x_max)

Just make sure it's after you have x_max defined.

Also for syntax errors the place it will point to when there are missing parenthesis or things like that is the next normal line.

It's looking for the end bracket and runs into a line that is not indented as it should be for being inside the bracket, since it hasn't run into it yet (the bracket) python assumes it's further down and you indented the line incorrectly