Single running average
As a researcher at the national weather agency, you want to run more analysis on the latest temperature data and you've just learned how to do running averages. You're keen to gain new insights and show them to the rest of the team.
Your task is to calculate the running average of the lowest monthly temperatures in Hawaii in the available dataset.
Cet exercice fait partie du cours
Time Series Analysis in PostgreSQL
Instructions
- Use a window function to calculate the running average for
t_monthly_minfor a single weather station in Hawaii,HI.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
-- Calculate the running average of the lowest temperates in Hawaii
SELECT
ts.state,
year_month,
t_monthly_min,
___ AS running_avg_temp
FROM temperatures_monthly AS tm
JOIN temperature_stations AS ts
USING(station_id)
WHERE state = 'HI'
ORDER BY year_month;