In this week’s lesson, we looked at the evolution of charts and how they have maintained their relevancy.
William Playfair was a Scottish engineer credited with creating the line chart, bar chart, and pie chart. As charts are part of our daily lives, it’s hard to imagine how society functioned without them. That’s why it’s hard for me to get my head wrapped around the fact that someone created the charts we use so prominently today. The charts that Playfair designed are visually stunning and I wish they were still designed like this today.
Bar chart
These charts or ****graphs can be created with vertical bars, horizontal bars, grouped bars (multiple bars that compare values in a category), or stacked bars (bars containing multiple types of information). They can convey information quickly and effectively and can be used to represent simple or more complicated sets of data. Bar charts are a classic way to present information and I personally love bar charts so I will definitely include one in my dashboard.
Line graph
A line graph is a graphical representation of information that changes over a period of time, for example, change of temperature over a period of time such as a year, the increase of wages over time or sales data for a company over a set space of time. I think line charts are an another great way to display information so I will most likely have one in my dashboard.
