Python for Machine Learning

Machine Learning
#67

I was following a tutorial about machine learning and following code works fine in tutorial but shows error when i try exact same thing:

from sklearn.cross_validation import train_test_split

It returns me this error:

ImportError: No module named sklearn.cross_validation

#68

When running this code in TensorFlow,I got this error: module ‘tensorflow’ has no attribute ‘session’ .But it worked fine last time i ran it.

import tensorflow as tf

msg = tf.constant(‘Hello, TensorFlow!’)

sess = tf.Session()

print(sess.run(msg))

#69

I am not able to run this script.It shows this error “ImportError: numpy.core.multiarray failed to import” about numpy and i have already numpy installed.Here is my script:

import cv2
import time

cv.NamedWindow(“camera”, 1)

capture = cv.CaptureFromCAM(0)

while True:
img = cv.QueryFrame(capture)
cv.ShowImage(“camera”, img)
if cv.WaitKey(10) == 27:
break
cv.DestroyAllWindows()

#70

columns = [‘Col1’, ‘Col2’, … , ‘ColN’]

df.drop(columns, inplace=True, axis=1)

#71

import numpy as np

import pandas as pd

indexs = [1, 2, 3, 4, 5, 6, 7]

a = [np.nan, np.nan, np.nan, 0.1, 0.1, 0.1, 0.1]

b = [0.2, np.nan, 0.2, 0.2, 0.2, np.nan, np.nan]

c = [np.nan, 0.5, 0.5, np.nan, 0.5, 0.5, np.nan]

df = pd.DataFrame({‘A’: a, ‘B’: b, ‘C’: c}, index=index)

df = df.rename_axis(‘ID’).values

print(df)

#72

Have you installed keras properly.And if you have used anaconda to install ,sometimes we encounter such problems.Try pip to install keras after removing it first.

pip install keras

#73

To create an empty dataframe in pandas, you this code:

import pandas as pd

df=pd.DataFrame()

#74

The tutorial you are following must be old and not updated.This code would work fine with older version of scikit-learn but for new version,you have to use following code:

from sklearn.model_selection import train_test_split

#75

You must have updated the Tensorflow to version 2 which now does not contain session().Tensorflow 2 runs Eager Execution by default, thus removing the need for Sessions but it can still be accessed via tf.compat.v1.Session().Here is how you can run your code in TF2:

import tensorflow as tf

msg = tf.constant(‘Hello, TensorFlow!’)

tf.print(msg)

#76

You need to upgrade your Numpy library. Your current version is not compatible with your CV2 module. You can use the below-given command to upgrade Numpy.

$ pip install -U numpy

#77

i want data file pdf

#78

Yes very nice and informative

#79

How do i get “assignment on pandas” which was given in class

#80

I have completed the exercise but progress is not showing there. What can I do?

2 Likes
#82

Dear Learner,

Please drop a mail to academy@greatlearning.in mentioning the course name

#83

Dear Learner,

Please drop a mail to academy@greatlearning.in mentioning the course name

#84

Machine Learning with Python

#85

I have completed watching all the video lectures but I have no idea on how to submit assignments, can anyone help!? My email id is - yashkhavnekar7@gmail.com

#86

Hello Learner
This is to inform you that the practice assignments are self- evaluatory. You need not submit them online and we suggest you to practice them offline.Once you will complete all the course videos, the quiz will get unlocked.

#87

import pandas as pd
myseries =pd.series(data=mylist)
print(myseries1)
myseries =pd.series(data=myarray)
print(myseries2)
print(myseries1[2])
sir the error show as module pandas as no attribute in series