Seattle Public Library’s Central branch not only boasts unique architecture but also world class visualizations of library data. On the level 5 of the building they have six large LCD display screens dedicated to provide visualizations of data like what people are reading, which books are checked out in the last hour etc. See them for yourself :
Vital Statistics:
Vital statistics displays running totals from various categories – books, CDs, DVDs etc. that people have checked out in the last one hour.
Floating Titles:
As the name suggests, floating titles shows the names of various items members have checked out in the order of check out time. The items start floating at right corner and slowly move to left and colored based on category of item (books are red etc.) Items with similar Dewey decimal classification (the numbers you see on library books) are placed at same height and items that are checked out at same time are closer to each other.
Keyword Map Attack:
This visualization uses the keywords of checked out titles and maps them based on how many Dewey categories those keywords can be mapped to.
All in all these visualizations provide a comprehensive look at what the library members are reading. If you ever visit Seattle don’t miss the Central library, it is such a great place with millions of books and marvelous architecture.
If you want to find out more about the visualizations in SPL visit George Legrady‘s home page and click on SPL Visualization Link. Artist George Legrady created this visualization at SPL.
8 Responses to “Create a Combination Chart, Add Secondary Axis in Excel [15 Second Tutorial]”
[...] Select the “daily completed” column and add it to the burn down chart. Once added, change the chart type for this series to bar chart (read how you can combine 2 different chart types in one) [...]
[...] set the height series to be plotted on secondary axis. Learn more about combining 2 chart types and adding secondary axis in [...]
[...] Excel Combination Charts – What are they? [...]
[...] To show the years, I have used another dummy series and plotted it on secondary axis (related: how to add secondary axis?) [...]
Thanks for this one!
[...] Choisissez la colonne « Daily Completed » et ajoutez-la au graphique. Une fois ajoutée, changez le type de graphique pour cette série à histogramme (lisez comment combiner 2 types de graphiques en un : combine 2 different chart types in one) [...]
How do i create a chart that has negative numbers on axis x and y and plot them correctly? I cannot seem to understand how to do this, please help.
Thanks.
Nat
You can also plot 2 or more Y axes in Excel using EZplot or Multy_Y from Office Expander.com
There is a demo version to try.
Cheers.