Hi, I’m going through the examples and the line numbers in the explanation for this function seems to be messed up.

```
def weather():
cloudy = torch.distributions.Bernoulli(0.3).sample()
cloudy = 'cloudy' if cloudy.item() == 1.0 else 'sunny'
mean_temp = {'cloudy': 55.0, 'sunny': 75.0}[cloudy]
scale_temp = {'cloudy': 10.0, 'sunny': 15.0}[cloudy]
temp = torch.distributions.Normal(mean_temp, scale_temp).rsample()
return cloudy, temp.item()
```

Let’s go through this line-by-line. First, in lines 2-3 we define a binary random variable ‘cloudy’, which is given by a draw from the bernoulli distribution with a parameter of

`0.3`

. Since the bernoulli distributions returns`0`

s or`1`

s, in line 4 we convert the value`cloudy`

to a string so that return values of`weather`

are easier to parse. So according to this model 30% of the time it’s cloudy and 70% of the time it’s sunny.In lines 5-6 we define the parameters we’re going to use to sample the temperature in lines 7-9. These parameters depend on the particular value of

`cloudy`

we sampled in line 2. For example, the mean temperature is 55 degrees (Fahrenheit) on cloudy days and 75 degrees on sunny days. Finally we return the two values`cloudy`

and`temp`

in line 10.

Obviously the function only has 7 lines and the explanation talks about 10 lines. Maybe the lines are truncated when this documentation was been written? I highlighted the correct line numbers.

Let’s go through this line-by-line. First, in lines

2we define a binary random variable ‘cloudy’, which is given by a draw from the bernoulli distribution with a parameter of`0.3`

. Since the bernoulli distributions returns`0`

s or`1`

s, in line3we convert the value`cloudy`

to a string so that return values of`weather`

are easier to parse. So according to this model 30% of the time it’s cloudy and 70% of the time it’s sunny.In lines

4-5we define the parameters we’re going to use to sample the temperature in lines6. These parameters depend on the particular value of`cloudy`

we sampled in line 2. For example, the mean temperature is 55 degrees (Fahrenheit) on cloudy days and 75 degrees on sunny days. Finally we return the two values`cloudy`

and`temp`

in line7.