Imput and Keep Highest

I am wanting to NdX and keep the highest, but I want to be able to tell it the values for number of dice and the dice size. Here is what I tried: {?{Ones}d?{diceSize},2}kh1 But I keep getting the error "Cannot mix sum and M rolls in a roll group" any suggestions?

Assuming I understand correctly, try this: [[?{Ones}d?{diceSize}kh1]]

I think your expression is missing a set of curly brackets, Keith. [[{?{Ones}d?{diceSize}}kh1]] Sans, if you want to set a default, you can use [[{?{Ones|1}d?{diceSize|6}}kh1]] If you want to see the dice rolls /roll {?{Ones}d?{diceSize}}kh1

Actually, I think Keith is right, though I didn't try it. He's doing: [[XdYkh1]] that's "keep the highest 1 number on X dice of size Y" what you wrote was: [[ {XdY}kh1 ]] Which is "keep the highest sum from the group of dice expressions containing a single entry: XdY" which would be the same as just: [[XdY]]

I tested before I posted. If I don't, I tend to wind up forgetting something basic. I do admit that I might not have understood the purpose of the expression though. The ",2" in the formula threw me.

I stand corrected! I forgot you don't need the { } around it here, I'm so ysed to using kh as group rolls. Aaron, the version I did does work, it only operates like a group when you have mutliple roll expressions. For single rolls like this case, it does work as a keep highest roll. So, Sans, the expressions I posted above do work, but you can also simplify them by removing one set of { }, like /roll ?{Ones}d?{diceSize}kh1 as Keith originally posted. Oops!

Interesting!  I'd count that group syntax working differently on a group of one as a bug, but I suppose it would be the only way to get a keep highest on a homogeneous group of die sizes. Wonder if this works: [[ {3d8+5d6}kh1 ]]

That keeps the highest of all of the dice, regardless of die size.

Yes, you need a comma in there to count as a separate group. for example [[ {3d8+5d6, 2d10+5d8}kh1 ]] will sum up each of the two groups separated by a comma, and report the highest group.

keithcurtis said: That keeps the highest of all of the dice, regardless of die size. Cool, that's what I was conjecturing it would do, based on GiGs's response.