Lets say I have the following `lin_reg.stan`

file.

```
data {
int<lower=0> N;
vector[N] x;
vector[N] y;
}
parameters {
real alpha;
real beta;
real<lower=0> sigma;
}
model {
y ~ normal(alpha + beta * x, sigma);
}
```

I know I can have a `data.R`

file that contains the following data

```
N <- 10
y <- c(3,3,4,5,4,7,8,7,7,8)
x <- c(1,2,1,2,1,3,3,4,3,4)
```

Using `./lin_reg sample data file=lin_reg.R`

then view the results with `stansummary output.csv`

This runs fine with no problem, but this seems like a toy example. In fact, most of the data I would like to use in stan is tidy. In this format there is no `N<-10`

, just column names and their data for each observation. Is it possible to send a csv or dataframe in that is tidy to stan?

For example a tidy csv file would like like:

```
y x
7 3
8 3
7 4
8 3
7 4
8 3
```