Waht is data

• Data is a set of values of qualitative or quantitative variables.

data visualization

• Representing data visually
  • Encoding data using visual channels (e.g. colors)
• Communicate information efficiently using statistical graphics and plots

How are we trending?

How about now?

How about now?

Why Data Visualization?

• The human brain automatically interprets what we see without thinking
• A picture is worth a thousand words

Data Visualization Tools

Color

Data Visualization Tools

Shape

Data Visualization Tools

Size

Data Visualization Example - Letter Frequencies

Data Visualization Examples - presidential election

Thanks!

Any questions?