How can I add a filter(Countofvehicles>10) for aggregate field for below code?

Can you elaborate a bit more about what you wanna achieve

Thanks for giving response  


above code is for grouping the "color" field and counting how many vehicles per each color. the output like for example 
color     countofvechiles
RED       20
WHITE   10
BLUE      5
BLACK   3

Now , I want to extend that code to add a filter of aggregate filed  "countofvehicles"  like, I want to display only  countofvehicles>5 , not all

Thanks for giving response  


above code is for grouping the "color" field and counting how many vehicles per each color. the output like for example 
color     countofvechiles
RED       20
WHITE   10
BLUE      5
BLACK   3

Now , I want to extend that code to add a filter of aggregate filed  "countofvehicles"  like, I want to display only  countofvehicles>5 , not all

I don't think you can do it in the query directly. You will have to run a loop on the data received and check if fv!item.countofvehicles >5. If true, then return the fv!item, else return {} 

Now because Appian doesn't print {} in the output, you will be left with the required data. 

We can't apply Filters on Aggregated Fields Cause filters asks for  record! references  , you can go with the Method Harshit suggested Looping the results.