W14 Visualization Challenge

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Brigham Young University, Idaho *

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150

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Computer Science

Date

Dec 6, 2023

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docx

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4

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CSE 150 Visualization Challenge Gage Jones Details You will have 1-hour to complete this challenge. Please plan ahead to allocate time to each of the three sections. If you get stuck in one section, move to the next section to make sure you can demonstrate your skills in all the areas. You will put your work in this document and then download the document as a pdf. Submit two things in I-Learn: 1. This document, filled out with your answers, saved as a pdf (File > Download > pdf) 2. The Tableau workbook you used to create your graph in the last section. Section 1: Visualization Critique Directions: Critique this chart from the New York Times. You may want to read the article this chart is from to gain more insights about the meaning of the chart. We are looking at your ability to discuss and understand charts using concepts from our course. You will use a modified critique process based on what we learned in Good Charts. You do not have to finish the questions in order. We do hope that you spend time on each question. Questions: 1. Make a note of the first few things you see. The first thing I saw was India being the biggest circle and in the middle and a bright yellowish color. Then i read the article to see what was going on and then the axis titles to try and see what is being displayed. 2. Write a short description of the message of the chart. Describe what each dot represents. Why are some dots different colors and sizes? What does the x-axis measure? What does the y-axis measure? X-axis: G.D.P. per capita Y-axis: 250 doses administered per 100 people
Each dot represents a country. The different colors represent the income level of that country and the size of the dot represents how big the population of that country is. 3. Note 2-3 likes, 2-3 dislikes, and 2-3 wish-I-saws. Likes: I like how there is a color disparity of the “income groups” . You can see a pattern of the higher income countries having more doses generally. The other thing I liked is they highlighted the names of certain dots with their country names so we get the general idea of where everything lies. Dislikes: How not everything is labeled country wise, I know it would make it clustered but I feel like it could've been done differently if that were the case. I also dislike that I have to search around to see what I'm even looking for and what it means. Wish-I-Saws: I wish we saw a different method of displaying each country's size since in some areas it was clustered together. I also wish that if we kept it like this that we could just remove the other unlabeled countries and keep the ones we were trying to highlight. 4. Explain the changes you would make to make a clearer presentation of their message. I would remove the unlabeled dots since they don't add to the table besides making it clustered. I would change the income color key and make the more profitable countries shades of green instead of blue. Since I associate green with money. 5. Sketch (aka, “prototype”) your own version of the chart, and write a 3-4 sentence paragraph critique of your prototype. (You can sketch on your computer, or sketch by hand and then upload a photo to this document.) YOUR ANSWER Section 2: Tidy Data Description Directions: For this section use the same chart as above. We are looking at your ability to perceive what data is needed to create this chart, and what it might look like in a “tidy” format. Please provide an example data set with all the columns (variables) needed for the chart and with 2-3 rows of example values. (You may need to increase or decrease the number of columns.) Data Example:
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