Chapter 2 Continued -Visualizing_Variability

Dai trang chapter 2 continued data visualization

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Unformatted text preview: i-Trang Chapter 2 (continued)- Data Visualization - Picturing Varia What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Directed versus Exploratory Approaches “Do you see what I see?” Directed Analysis begins with a specific question that you wish to answer, then proceed a search for the data that may result in finding the answer. Exploratory Analysis begins by looking at the data w.o predetermining what you expect to find, then proceed to noticing things in the data that are interesting and asking a question about it, then proceed in the directed path in search of the Le answer. Dai-Trang Chapter 2 (continued)- Data Visualization - Picturing Varia What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Directed versus Exploratory Approaches “Do you see what I see?” Directed Analysis begins with a specific question that you wish to answer, then proceed a search for the data that may result in finding the answer. Exploratory Analysis begins by looking at the data w.o predetermining what you expect to find, then proceed to noticing things in the data that are interesting and asking a question about it, then proceed in the directed path in search of the Le answer. Dai-Trang Chapter 2 (continued)- Data Visualization - Picturing Varia What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Directed versus Exploratory Analysis “Do you see what I see?” Which approach is vital for data analysis? A. Directed Approach B. Exploratory Approach Dai-Trang Le Chapter 2 (continued)- Data Visualization - Picturing Varia What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Answer to Both approaches are vital for data analysis? A. Directed Approach andChapter 2Exploratory Approach- Picturing Varia – B. (continued)- Data Visualization Dai-Trang Le What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Why both approaches are important? Data analysis, like experimentation, must be considered as an open-minded, highly interactive, iterative process ... of possible options (Jonh Tukey)’ Comprehensive analysis requires that we sometimes start with a blank slate and let the data itself direct you to items worth examining. At the start, we may know very little. The goal is to get to where we need to be: understanding much. It may take many steps and many roads. It pays off, ... suddently you begin to see... Dai-Trang Le Chapter 2 (continued)- Data Visualization - Picturing Varia What is Data Visualization? Displaying Categorical Data Displaying Categorical Data Describing Numerical Data Misleading Graphs Interpreting Graphs Review Chapter 2 Why both appro...
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