10 Questions
What is the primary goal of visualization in data exploration?
To amplify cognition for discovery and decision making
What type of graph is used to summarize quantitative/numeric data?
Boxplot
What is the name of the dataset used in the in-class exercise?
Iris dataset
What is the purpose of the head() function in data exploration?
To look at the first few rows of data with column names
What type of graph is used to display the distribution of a single variable?
Histogram
What is the name of the function used to create a graph layer in ggplot2?
ggplot()
What is the purpose of the aes() function in ggplot2?
To define an aesthetic
What is the name of the dataset used in the ggplot2 examples?
Diamonds dataset
What is the purpose of facet_wrap() in ggplot2?
To segment data
What is the first step in the protocol for data exploration?
Look at the first few rows of data with column names
Identify common mistakes and limitations in data analysis, including ignoring suspicious findings and blindly running algorithms. Learn about the importance of critical thinking in data mining and predictive analytics.
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