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HXLdash is capable of two possible maps type. Point data and area data. This tutorial will guide you through how to create an area map (choropleth maps).
A. column with pcodes
B. The pcodes should be for a country supported by HXLDash
C. A column with values in it
Area map or choropleth maps only work for the countries HXLDash currently supports.
If the country you want is not on the list send us a message and we will try to get in up in a couple of days.
For those not familiar with place codes or pcodes, they are codes given to geographic administrative boundaries in countries by the responding humanitarian organisations. The purpose is to easily identify places in data sets to overcome two problem. That the same place can be spelt differently or different places can have the same name.
Pcodes generally have a format like
More details about pcodes can be found on the humanitarian response website.
Once you are using the pcodes for you country make sure you use the correct HXL tags. The tags that will trigger a choropleth map:
#country+code, #adm1+code, #adm2+code, #adm3+code
The final ingredient is needing a column with values so the colour of each area can be calculated. The following value columns are supported for maps.
#value, #affected, #population, #reached, #targeted, #inneed, #indicator+value, #capacity'
For this tutorial we will use a dataset on Ebola cases in Sierra Leone.
Grab the URL of the google spreadsheet and drop it into the load dashboard data input. The dataset has the three key ingredients. A. Sierra Leone is supported by HXLDash, B. We have #adm2 pcodes and C. We have a column wih values and the #affected tag.
The data set is automatically processed and shows the number of charts and maps generated
The next section allows you to pick a layout. For this tutorial we will choose a single large box for the map. This layout is in the bottom left.
And lastly you can pick a colour of your choice. In this case for now we will use the default red.
On the layout click the plus icon to get the chart and map selector. Click the maps tab and then select the map labeled "Map of cases by district code".
This will auto generate the map with suitable legend and title. To make this map online so you can share click save and complete the optional meta data fields. The map is now ready to share.