I have results of an experiment exp1Size independent trials with binary outcome of which exp1Pos came out positive. I can easily get CI for the rate. But what I want is confidence intervals for a future experiment of given size.

I can’t seem to put an Int paramater in pystan and was wondering how I can get around this.

What I would like to is something like this:

```
model {
exp1pos ~ binomial(exp1size,rate);
exp2pos ~ binomial(exp2size, rate);
}
```

When the input is: exp1Size,exp1Pos, and exp2Size and I want confidence interval for exp2pos.