Assignment 1: Data Visualization Analysis
How many students have experienced gun violence at school since Columbine from 2000-2018
This is a chart detailing the volume of student who have experienced gun violence at school in Columbine from 2000 to 2018. One dot in the tiny circle represents 10 children exposed to gun violence.Next I will analyze the pros and cons of this chart how it expresses data information.
First of all, this chart uses curve, circles dots and numbers to show population of students in situation, the advantages include: 1.Flexibility. This chart is obvious to see the differences between each period of years so that we can conduct the total trend of violation distribution in Columbine, also convenient for the viewer to interpret and compare its position and relationship between the two coordinates. 2.Convenience. Compare to other chart like bar chart, pie chart etc, this graph can easily details in much dimensions: time, schools, volume of target, and trends. This benefit can improve people's ability to understand data and make work much more efficiency. The text in the chart is often used only to interpret or annotate the data. Less text makes the analysis result concise and clear. For example, in this chart the annotation like marjory stoneman Douglas High School annotates the highest volume of students experience gun violation at 2018 in columbine. these text obviously show the highlights in this graph.
However, this graph has a disadvantage. That is we are hard to evaluate exact volume of students in exact time spot and exact position. The reason is the dots are to tiny to recognize and count. You are supposed to amplification and count one by one if you need
precise statistics. For example, if someone ask me to evaluate the number of students who experience gun violation in Sandy Hook Elementary School at 2010 February, I can't tell immediately. This is the disadvantage called non-specific.
Overall, this graph is intuitive, vivid, makes complex statistics simple, popular, and visual, making it easy to understand and compare. It can visually display the statistical information attributes, the graphic structure that plays a key role in data understanding and intuitive visual perception.
Hi Li,
ReplyDeleteGreat topic, and it is appropriate time in the context of the unfortunate mass shootings and gun violence going on in the United States. The assessment about the convenience of the chart is correct , as it is simple to navigate time, and larger historical trends. The blog also, points to the imprecision of the dots or circles when pinpointing to the exact and relevant statistic. One criticism, would be grammatical. For example, sentence structure, in paragraph 3, sentence 2: Should be rewritten as it is incoherent. Aside from that,the blog was very interesting to read.