hours = lambda i: i * 60*60
w = (Window.partitionBy([col(x) for x in cols + []]).orderBy(col('Raised').cast("timestamp").cast("long")).rangeBetween(-hours(4), 0))
df = df.withColumn('SumAlarms', count("Rack").over(w))
Preview:
downloadDownload PNG
downloadDownload JPEG
downloadDownload SVG
Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!
Click to optimize width for Twitter