Where is the target specified in the tensorflow load_csv function

Question

I am trying to follow this tenorflow tutorial which uses the load_csv function. TUTORIAL_LINK

One of two lines:

 IRIS_TEST = "iris_test.csv" test_set = tf.contrib.learn.datasets.base.load_csv( filename=IRIS_TEST, target_dtype=np.int ) 

Where "iris_test.csv" as follows:

 30,4,setosa,versicolor,virginica 5.9,3.0,4.2,1.5,1 6.9,3.1,5.4,2.1,2 5.1,3.3,1.7,0.5,0 6.0,3.4,4.5,1.6,1 5.5,2.5,4.0,1.3,1 6.2,2.9,4.3,1.3,1 5.5,4.2,1.4,0.2,0 6.3,2.8,5.1,1.5,2 5.6,3.0,4.1,1.3,1 6.7,2.5,5.8,1.8,2 7.1,3.0,5.9,2.1,2 4.3,3.0,1.1,0.1,0 

I am sure that the goal of the machine learning exercise is the verginica column, but I don’t know how it is listed as such.

Is this the last column?

Answer 1

From the code :

 def load_csv(filename, target_dtype, target_column=-1, has_header=True): """Load dataset from CSV file.""" 

the default for target_column is -1 . So the last column is good to know.