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pythonmapping

Map Error In python

def mapTarget(target):
    if target == 0:
        return 'setosa'
    if target == 1:
        return 'versicolor'
    if target == 2 :
        return 'virgincia'



ir = load_iris()
df = pd.DataFrame(ir['data'], columns = ir['feature_names'])
df['target'] = ir['target']
df['target_name'] = map(mapTarget,df['target'])
print(df)

Python 3.x In the above program i'm trying to map the target value with the target name in the iris dataset. But it always return something like map object at 0x000000001466DD68

Solution

  • In Python map is a generator. To turn it into a list, simply change

    df['target_name'] = map(mapTarget,df['target'])

    to

    df['target_name'] = list(map(mapTarget,df['target']))