Errors while running

Please show with an example.
Run it with Iris dataset and upload code.
![15899102831446007031296096488336](https://user-images.githubusercontent.com/60065886/82360160-98ba4380-9a26-11ea-9d5f-52aac10e59a8.jpg)
![1589910384055708898203638196250](https://user-images.githubusercontent.com/60065886/82360284-c99a7880-9a26-11ea-89a2-9d6ff6b378a0.jpg)


