UFOs can be identified as any object that escapes classification and seen trans-versing through the sky in a flying motion. National UFO Reporting Center (NUFORC) has been keeping records of these sightings since 1910. Evaluate the Data Visualization to see how sightings have evolved over time.
How this viz was made:
1. The data was imported into Tableau with a CSV file.
2. Location was placed on the dimension shelf while number of records was on the measures shelf.
3. Dark Map was chosen and placed the dates on the page shelf.
4. Annotated the area and added date.
The X was put on the dimension shelf while number of records were placed on the measures shelf.
Simple bar chart was created by placing state on the dimensions shelf and number of records on the dimension shelf. To create the descending colors, number of records were added to the colors mark.