Machine Learning Tutorial 2 - Logistic Regression Python Part 1 | Machine Learning Basics

In this video, we will learn about logistic regression with python in machine learning. Logistic Regression is a Machine Learning algorithm which is used for classification problems, it is a predictive analysis algorithm, and based on the concept of probability. Logistic regression is basically a supervised classification algorithm. In a classification problem, the target variable(or output),y, can take only discrete values for a given set of features(or inputs), X. Logistic regression becomes a classification technique only when a decision threshold is brought into the picture. The setting of the threshold value is a very important aspect of Logistic regression and is dependent on the classification problem itself.

#LogisticRegression #MachineLearning #TitanicDataset
🔊 Watch till last for a detailed description
01:59 What is logistic regression?
06:05 Decision boundary
08:22 Building the model
13:12 Data understanding
38:00 analyzing embarked
50:19 Convert categorical data into numerical data
58:08 Build a logistic regression model

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[mohan]

can u pls share the repository details, repo mentioned in description for Download Working File is not available.

[yogeshbharadwaj]

Tks for the detailed video. Can help to suggest why 'X_test' is used instead of 'y_predict' while taking model score ? Tks

[mikebot]

Can you share the notebook via google drive? There is no images in GitHub Repo.

[HarishS]

in the end when you are checking the model score, you have taken (x_test, y_test)... it should be (y_predict, y_test) right?

[kaviarasan]

Anybody tell what is axes subplots object is not scriptable

[shubhamjha]

sir ye error dekhiye na


F = sns.FacetGrid(titanic, row='embarked', height=4)
F.map(sns.pointplot, 'pclass', 'survived', 'sex', order=None, hue_order=None)


TypeError: Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe'

[Ramesh-rpjq]

What is fig and figsize in the histogram. Please explain

[abhishekpandey]

Hello Laxmi sir .. i want to dwnload working github file for this playlist but it gives.. 404 errors .. pls reply me, how can i download these ..

[shubhamjha]

TypeError: Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe' this error is generaly related with
NumPy version: 1.18.1
seaborn version: 0.10.0
but in the new version of seaborn, this problem is solved
update your seaborn using (pip install seaborn --upgrade)
restart your kernel and run all cell

[chandramandava]

Hello Laxmi, one quick question..while converting the categorical data into numerical, you have given men =0, women = 1 and children =2. I understand that you have seen the survival rate and given the numbers in such a way. However, for Class, we know that 3rd class passengers least survived, but they have highest value of 3. Do you think we need to change values of 3 class to 0, 2nd class to 1 and 1st class to 3. Pls help me to understand.