Data Science Methodology Lecture 04 Quiz
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Questions and Answers

What is the purpose of normalizing the attributes in a matrix plot?

  • To improve the aesthetic appearance of the plot
  • To ensure that one attribute does not dominate the plot (correct)
  • To make the data more visually appealing
  • To highlight the relationships between objects

    • What is the main advantage of using parallel coordinates to visualize high-dimensional data?

  • It provides a better representation of the relationships between objects
  • It makes it easier to identify clusters or groups within the data
  • It is more visually appealing than other data visualization techniques
  • It allows for the visualization of more attributes than a traditional scatter plot (correct)

    • What is the purpose of visualizing a similarity or distance matrix?

  • To identify the most important attributes in the dataset
  • To compare the performance of different data visualization techniques
  • To provide a more aesthetically pleasing representation of the data
  • To highlight the relationships between objects based on their attribute values (correct)

    • Why is the ordering of attributes important in a parallel coordinates plot?

    <p>It affects the ability to identify clusters or groups within the data</p> Signup and view all the answers

    What is the purpose of the contour plot example of Sea Surface Temperature (SST) provided in the text?

    <p>To provide an example of how to visualize geographic data</p> Signup and view all the answers

    What is the key difference between a matrix plot and a parallel coordinates plot?

    <p>Matrix plots use perpendicular axes, while parallel coordinates use parallel axes</p> Signup and view all the answers

    How can the visualization of the Iris data correlation matrix be useful?

    <p>It can provide insights into the relationships between the different Iris species</p> Signup and view all the answers

    What is the primary purpose of the matrix plot example for the Iris data?

    <p>To highlight the differences between the Iris species based on their attribute values</p> Signup and view all the answers

    What is the main advantage of using parallel coordinates to visualize the Iris dataset?

    <p>It allows for the identification of clusters or groups within the data</p> Signup and view all the answers

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