Hi, my name is Jose Alejandro ordoñez, I´m writing because I have problems with the function `integrate_1d`

. The code below shows what i´m triying to do.

```
scode= "
functions{
real dplogisstan (real x, real mu, real sigma, real alpha){
real dens = alpha*pow(logistic_cdf(x,mu,sigma),alpha-1)*exp(logistic_lpdf(x|mu,sigma));
return dens;
}
real eapp_integrand (real x, real xc, real[] theta, real[] x_r,int[] x_i){
real alpha = theta[1];
real a = theta[2];
real ez = digamma(alpha)-digamma(a);
real vz = trigamma(alpha)+trigamma(a);
real sigmaalpha = sqrt(1/vz);
real sigma1 = sqrt(0.5/trigamma(a));
real mualpha = -sigmaalpha*(digamma(alpha)-digamma(a));
real integrand = log (1+ exp(-x/sigma1))*dplogisstan(x,mualpha,sigmaalpha,alpha);
return integrand;
}
real eapp_integral(real alpha){
real x_r[0];
int x_i[0];
real integral=integrate_1d(eapp_integrand, negative_infinity(),positive_infinity(), {alpha, 1.0}, x_r, x_i);
return integral;
}
}
"
```

After this code, I used the function `expose_stan_functions(stanc(model_code = scode))`

to verify that my sintaxis is correct, nevertheless, the last function which uses `integrate_1d`

shows me this error.

## ``stan

SYNTAX ERROR, MESSAGE(S) FROM PARSER:

error in ‘model7adc79c87c32_scode’ at line 24, column 108

```
22: real x_r[0];
23: int x_i[0];
24: real integral=integrate_1d(eapp_integrand, negative_infinity(),positive_infinity(), {alpha, 1.0}, x_r, x_i);
^
25: return integral;
```

PARSER EXPECTED: “,”

Error in stanc(model_code = scode) :

failed to parse Stan model ‘scode’ due to the above error.

``

After that, as in the website of stan, I decided to include the argument `relative_tolerance`

with a similar result but in this case the error was PARSER EXPECTED= “)”.

Thanks for the attention, I would be grateful with any suggestion.