What is the primary use of the rvest package in R?
A. Web scraping and data extraction
B. Natural language processing (NLP)
C. Creating and modifying network graphs
D. Machine learning model training and evaluation
Answer: Option A
This Question Belongs to R Programming >> R Programming Packages
Which package in R is commonly used for data manipulation and transformation tasks?
A. dplyr
B. manipulateR
C. datawrangler
D. reshape2
What is the primary purpose of the ggplot2 package in R?
A. Statistical analysis and modeling
B. Data visualization and plotting
C. Machine learning and predictive modeling
D. Data import and export
In R, which package is specifically designed for working with time series data?
A. forecast
B. timeSeries
C. tsdata
D. chron
Which package provides functions for fitting linear and nonlinear mixed-effects models in R?
A. lme4
B. nlme
C. mixedmodels
D. lmnlme
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