I'm using this function:

showstats()
{

if(isdefined(level.rank))
{
	level.rank destroy();
}

level.rank = newHudElem();
level.rank.x = 325;
level.rank.y = 20;
level.rank.alignX = "right";
level.rank.alignY = "middle";
level.rank.sort = -3;
level.rank.alpha = 1;
level.rank.fontScale = 1.5;
level.rank.archived = true;
level.rank setText(&"Rank: ");
}

This work great with static text but I can't display variable.

im guessing your trying to display Rank : 0 or w.e there rank is. for that you did the text part correct now make another hud but instead of setText use setValue and put your rank variable in there im guess self.rank? and then yeah it will display your rank. but remember to update the setValue hud when ever the person ranks up so it will show their new rank.

either lil liltc64 said it or:

hud.label = &"Rank: &&1"
hud setValue( player.rank );

serthy writes...

yeah that is actually better forgot about label. just make sure to update it like i said.

Another problem :( When I write for example
"testvariable = 1" and then
"level.score setValue( testvariable );"
the script work fine. I see a text "Your Socre: 1". But when I try to display self.score there is a problem. I see only "Your Score: &&1".

self/level/player/user are variables. Just as the testvariable = 1 you need to set them somehow (although not entirely true for self and level).

Using self at random is bad practice.

Another example of bad practice is using level hud elements to display player's info.

So how to do this? (Rank + variable)

Screenshot

if your still having problems just do what i said, very bold and simple as it gets and try finding a better way another time if you would like.