Question 2Which R library is used for machine learning?1 pointdplyrcaret ggplotstringr

Break Down the Problem

1. Identify the libraries mentioned in the question: dplyr, caret, ggplot, stringr.
2. Determine which of these libraries is commonly used for machine learning.

Relevant Concepts

• Each library has a specific purpose:
  • dplyr: Data manipulation
  • caret: Classification and Regression Training
  • ggplot: Data visualization
  • stringr: String manipulation

Analysis and Detail

• Among these, the caret package is specifically designed for machine learning. It provides a unified interface for various machine learning algorithms and is widely used for training and evaluating models.

Verify and Summarize

• After evaluating the functions of the libraries, it is confirmed that caret is the correct answer as it directly supports machine learning tasks.

Final Answer

The library used for machine learning in R is caret.