This script takes in a list of strings. It consolidates repeated values and tells you how many times equal strings are repeated.
To use, copy the code below into a standard C# script component in Grasshopper. Add an additional output called B. Output A will show all the different values found in the list, and B will show the count for each item in A for the number of times that item was found.
var names = new List<string>();
var counts = new List<int>();
foreach (string str in x)
bool exists = false;
for (int i = 0; i < names.Count; i++)
if(str == names[i])
exists = true;
A = names;
B = counts;