My survey contains a list of 125 plant species. The user selects plant species along transects and counts the # of of each. In my 'count species' function, every time a species is counted, it registers as 1. If the same species is counted multiple times, it is counted multiple times, inflating my final species count. I need to only count the unique species selected from the list to get an accurate result. Is there a way to do this?
what does your count species function look like?
I have two groups of plants that use the same plant list. One we call indicators and the other is called non-indicators. The count function is pasted below.
type name label
select_one list_11 | indicators | Select Species |
calculation
count(${indicators}) |
The syntax is the same for non-indicators.
Any suggestions are appreciated.
Jimmy
Add a column to your choice list that has say a 1 or 0 in it - 1 if you want to count it. Have field 2 do a pulldata on the species name that grabs the 1 or 0. Then do a count or sum on that field with the number in it.
Opps missed the unique part. You need another field that does a concat to create a list of all values in the repeat. Then add a If on the count that has a contains on this field. So If FieldA contains FiledB then 1 else 0.
This a good post about making a field list. https://community.esri.com/thread/189428-summerize-data-within-a-repeat-survey123
You can just have a field for joinning all the selected species (e.g. selection = join(',', ${species})
And then another field where you:
(e.g. if(contains(${selection}, 'Specie1'),1,0) + if(contains(${selection}, 'Specie2'),1,0) +...