Dear experts,

I’d like to use a RooKeysPdf to get a MonteCarlo shape pdf,as below:

and use it fit data in the Range of [0.985,1.15], but it will print many messages as below:

```
got point below lower bound:0.97675 < 0.985 -- performing linear extrapolation...
got point above upper bound:1.15825 > 1.15 -- performing linear extrapolation...
got point below lower bound:0.982422 < 0.985 -- performing linear extrapolation...
got point above upper bound:1.15258 > 1.15 -- performing linear extrapolation...
got point below lower bound:0.979586 < 0.985 -- performing linear extrapolation...
got point above upper bound:1.15541 > 1.15 -- performing linear extrapolation...
got point below lower bound:0.978168 < 0.985 -- performing linear extrapolation...
..........
```

Although it can fit data successfully,I want to know how to correct my script ?

Besides, what’s mean of the option ‘RooKeysPdf::MirrorBoth’? if I use ‘RooKeysPdf::MirrorLeft’ or ‘RooKeysPdf::MirrorRight’ ,it can’t fit data successfully!

Thanks a lot!