Aishwarya Jhadav

What does the DOCKER_HOST variable do?

Hey there, I have just started learning about docker. I am using Boot2Docker with OSX. I am getting an error logging into it :To connect the Docker…

Devops

1 Answer · 1.7K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 5 years ago

selenium - chromedriver executable needs to be in PATH

'chromedriver' executable needs to be in PATHI was trying to code a script using selenium in pycharm, however, the above error occurred. I have…

Java

1 Answer · 1.2K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 5 years ago

How might I convert a DateTime object to milliseconds since epoch (Unix time) in Python?

Python

1 Answer · 1.1K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 5 years ago

What is git prune?

The git prune command is an inside housekeeping utility that erases lost or "stranded" Git objects. Inaccessible items are those that are unavailable…

Devops

1 Answer · 1.1K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 5 years ago

How to perform selection and indexing of data frame elements in R?

To perform such operations, we have to build a dataframe first # Some made up weather data days

Data Science · R

1 Answer · 851 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

When to choose one-hot encoding and word embedding?

One-hot encoding is a method which vectorizes any categorical features. It can be done just by adding one to each category. It is simple and fast but…

Data Science · Natural Language Processing

1 Answer · 2.8K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

A user is using R to implement kNN classification model. The knn function in'class'package contains a parameter called cl: What does it mean?

KNN or K Nearest Neighbor is a non parametric or lazy learning algorithm which works while testing the data. It memorizes the unseen test data by…

Data Science · Machine Learning

1 Answer · 808 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

A user is getting a value error in Logistic Regression .How to solve this? He tried dropping the su

Here the error is due to the different shapes of train and test data of the feature variables. In test data,

Data Science · Machine Learning

1 Answer · 756 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

Explain with an example how to find out the p-values in order to avoid multicollinearity?

In logistic regression, p-value can be found by the following code

Data Science · Machine Learning

1 Answer · 840 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

Why is log(odds) considered and not probability in logistic regression?

Logistic regression applies maximum likelihood estimation which transforms the dependent variable into a logit variable

Data Science · Machine Learning

1 Answer · 1.1K Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

A user has a dataset of reviews which has a class label of positive/negative. He is applying Decision Tree to that reviews dataset. How to get the feature importance using the decision tree classifier?

Below is the code X_tr, X_test, y_tr, y_test = cross_validation.train_test_split(sorted_data['Text'], labels, test_size=0.3, random_state=0) # BOW…

Data Science · Machine Learning

1 Answer · 715 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago

Explain with a case study of implementation of decision tree regression in R

Initially we import and split the data # Importing the dataset dataset = read.csv('Position_Salaries.csv') dataset = dataset[2:3] #Splitting the…

Data Science · Machine Learning

1 Answer · 792 Views · Answered ✓

A Asked by: Aishwarya Jhadav · 6 years ago