[Qgis-us-user] question about linking multiple data sets so they can be turned on/off

[Kerrie Bushway]

You can select all the layers for 2018 and right-click (working off memory)
and place in a group which you can then label "2018". Then add all your
2016 layers and group it as "2016". That way, you only have to
check/uncheck one box for the "group" and it turns on/off all the layers in
that group.

Hope this helps!
Kerrie

On Sun, May 12, 2019 at 11:28 AM Dan Nichols <dan.nichols at gmail.com> wrote:

> Not sure if I posted anything about this before but still looking for
> answers.
>
> I'm new to QGIS, obviously.
>
> I've loaded a shapefile of a us congressional district, which spreads
> across 3 counties
> Next I have added shapefiles of voter precincts in those counties.
> Next I have joined excel files of voter data from 2018 to the 3 individual
> counties/precincts.
> So I have the district and 3 county/precinct/data layers. I've added a
> color ramp
> so far all good, pretty excited at what I accomplished.
>
> Now I want to add data from 2016
> I understand I could join additional excel files, but then all the data
> from both years would
> be included. What I want is to be able to select/unselect the 2 years,
> ultimately be able to add
> additional data, such as demographics. Need to be able to turn on/off each
> data set.
>
> I got the impression somewhere I could save/export what I have so far,
> start over? and do the same thing with the other data? but I'm not at all
> clear on exactly how to do that.
>
> Any help greatly appreciated.
>
> Thanks,
> Dan
>
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