Podcast
Questions and Answers
What is the main focus of Data Analysis?
What is the main focus of Data Analysis?
Which type of analysis involves visualizing data using Histogram and Pie-charts?
Which type of analysis involves visualizing data using Histogram and Pie-charts?
What is the primary concern of Data Analytics?
What is the primary concern of Data Analytics?
Which type of analytics focuses on understanding 'why something happened'?
Which type of analytics focuses on understanding 'why something happened'?
Signup and view all the answers
What does Descriptive Analysis primarily focus on?
What does Descriptive Analysis primarily focus on?
Signup and view all the answers
Study Notes
Exploratory Data Analysis
- Learning outcomes of exploratory data analysis include conducting correlation analysis, exploring data using Principal Component Analysis (PCA), and conducting data summary analysis.
Analysis and Analytics
- Analysis and analytics can be categorized into different types, including:
- Descriptive Analysis
- Diagnostic Analytics
- Exploratory Analysis
- Predictive Analytics
- Mechanistic Analysis
- Prescriptive Analytics
Correlation Analysis
- Correlation analysis involves calculating Pearson's r correlation coefficient to measure the linear relationship between two continuous variables.
- Example of correlation analysis: calculating the correlation coefficient between two variables.
Principal Component Analysis (PCA)
- PCA is a dimensionality reduction technique that transforms a set of correlated variables into a set of uncorrelated variables called principal components.
- 2-dimensional PCA: a simplified example of PCA that reduces data to two dimensions.
- Intuition behind PCA: finding the direction of maximum variance in the data.
- Variance Maximization: the goal of PCA is to maximize the variance of the principal components.
- Obtaining Principal Components (PC): involves computing the eigenvectors and eigenvalues of the covariance matrix.
- Case Study-1: an example application of PCA.
Data Summary Analysis
- Data summary analysis involves summarizing and describing datasets using statistical measures.
- Case Study-2: an example application of data summary analysis.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of exploratory data analysis, correlation analysis, and principal component analysis with this quiz. Explore different types of data analysis and analytics techniques.
