Hi Everyone,
I am trying to count the occurance in my list. I looked at earlier posts and also tried a couple of nodes but I wasn’t successful. So I am having the current table as you can see here:
| width | height | material | finish | count |
|---|---|---|---|---|
| 400 | 900 | dark | hpl | 3 |
| 500 | 1200 | white | laminate | 1 |
| 350 | 850 | yellow | laminate | |
| 400 | 900 | dark | hpl | |
| 400 | 900 | dark | hpl |
So I am trying to identify and count the similar rows in my list. I tried it in dynamo as you can see here but cound’t manage to solve it
Any suggestions?
Are you trying to count how many times the same combination of parameters appears? If that is the case, you should try String.concat after the Transpose and then count occurrences / groupbykey + count.
I think that’s definitely the way to do it too 
If I may, you might alsso want to convert all the objects in string before applying String.Concat
As @mellouze said, for String.Concat to work, you need to convert any numbers into string. Something like this:
No problem 
if you need to separate them back, instead of using string.Concat, there is string.Join and you can set something to separate them by:
(the bottom part)
@kennyb6 great one mate.
I was just thinking on how to seperate them back 
thank you
