I am working in Stata with a dataset on electric vehicle charging stations. Variables include
station_name name of charging station
review_text all of the customer reviews for a specific station delimited by }{
num_reviews number of customer reviews.
I'm trying to make a new file where each observation represents one customer review in a new variable customer_review and another variable station_id has the name of the corresponding station. So, if the original dataset had 100 observations (one per station) with 5 reviews each, the new file should have 500 observations.
How can I do this? I would include some code I have tried but I have no idea how to start.
If your data look like this:
station reviews n
1. 1 {good}{bad}{great} 3
2. 2 {poor}{excellent} 2
Then the following:
split(reviews), parse(}{)
drop reviews n
reshape long reviews, i(station) j(review_num)
drop if reviews==""
replace reviews = subinstr(reviews, "}","",.)
replace reviews = subinstr(reviews, "{","",.)
will produce:
station review~m reviews
1. 1 1 good
2. 1 2 bad
3. 1 3 great
4. 2 1 poor
5. 2 2 excellent