I have this query: $this->set(\'grades\', $this->Grade->Query(\" SELECT AVG(grade), sections.section_name
I want to calculate the average grade of a bunch of rows in a MySQL table.The thing is, there may be a different scale used depending on what user you are logged in as.
It is possible to do something like this working:开发者_JAVA技巧 class Book(models.Model): voters = models.ManyToManyField(User, blank=True)
How would I calculate the average of a list of numbers using map and reduce. Ideally I want to call reduce on a list and get an average back. You may optionally map and filter that list first.
Say I have a spreadsheet with 18 rows, and I can hard code the range of the last 7 values in column D and average their values like so:
It looks like I can get the average of the whole array but not of each item in a array. I would like to avoid some loop.
I have the following query: SELECT AVG(time) FROM (SELECT UNIX_TIMESTAMP(max(datelast)) - UNIX_TIMESTAMP(min(datestart)) AS time
I have a situation where I have one VERY large file that I\'m using the linux \"split\" command to break into smaller parts.Later I use the linux \"cat\" command to bring the parts all back together a
so in short my script currently outputs a csv with the log name, time stamp (10:38:52) and the message (Verification: SUCCESS and SendResponse: Response message).
I\'m trying to get the average number of interactions on my metrics, but this query gets the average number of inteactions for those who DID interact (those in metricsActions are only there i开发者_St
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