Welcome to Tableau Kim!
I was able to isolate CA in Tableau 8 by setting Washout to 100% in Map Options (see attached image). Go to your map and select "Map Options" from the "Map..." menu, then set the Washout slider to 100%.
In Tableau 7, the same approach did not work out quite as well, but I did find another path to success. I was able to isolate California by 1) Filtering out all values that were not in California, and 2) Going to "Map Options" from the "Map..." menu and unchecking all of the "Map Layers". See attached "California 7" image for the result - a beautifully isolated California.
Hope this helps,
Thank you for the warm welcome.
I'm sorry, maybe I'm missing a step. Even though I filtered on CA only, when I do the washout to 100%, CA disappears along with NV, etc. too. Is there something I have to do so that CA stays? I have attached my sample.
Thanks in advance,
all_states_washedout.pdf 101.4 KB
Since your data set does not include all the counties in California, the washout method will not work. Unless anyone out there has any other approaches, I'm afraid you might have to strike a compromise. You could add 0 values for every other county in CA to your data set, but that might be too onerous. If you did, Tableau would display a "0" count for all other counties and the map would look like all of Cali.
You might just be better off showing Nevada in your Viz.
Sorry I wasn't able to solve it all the way, but I did learn more about maps in the process
Thanks again Steve for your input.
Thank you Allan for the recommendation, I will definitely give that a go. I appreciate the help.
If you have any difficulty give me a shout and I will see what I can come up with...