Arcade symbology expression for custom groups
Hello,
Looking to see if someone would be able to assist in generating an Arcade expression that I would like to apply to an internal REST service.
It is a tree inventory layer (800,000+ features) that I would like to create 3 custom groups (High, Medium and Low Risk) based on the tree species name.
Based on these three groups, I want to change the point symbology to either a red colour for high-risk, orange point for medium-risk and yellow colour for low-risk trees.
I have attempted to do create it but with no luck. The script below seems to generate only the Low-Risk group when added to arcgis pro.
Script as of now:
var name = $feature.BOTANICAL_NAME
if (name == "Quercus*"|| name == "Acer*"|| name == "Picea*") {
return "High Risk" }
}
if (name == "Betula*" || name =="Fagus*"|| name =="Salix*" || name =="Juglans*" || name =="Gleditsia*" || name =="Malus*" || name =="Prunus*" ) {
return "Medium Risk"}
}
else {
return "Low Risk" }
I never claimed to be good at scripting by the way! 
Any assistance would be greatly appreciated!
Josh
Josh:
FYI... Here's an alternative solution with Python3 using regular expressions. Though the answer given by Chelsea Rozek is the best way to implement this using Arcade. The only real difference between the two is that if any of the names were not spaced properly then the Arcade solution would not catch it, since the Split function is looking for a space in the field value. For example if "Juglans nigra" was missing the space, such as "Juglansnigra". The solution using Python regular expressions would still correctly categorize this. But, assuming your data is clean and properly spaced, this is a non-issue. Additionally, you could alter the Regular Expression to catch all cases (upper and lower) of Juglans in the field values.
SOLUTION:
OUTPUT: