## LESSWRONGMetaLW

After my vote:

" Mean 43.5 Median 75.0 Total votes 2"

Well this is mathematically impossible... My guess is the median isn't properly calculated for even numbers of votes.

Well this is mathematically impossible...

Not necessarily:

Mean: 43.5

Median (upper median): 75

While the standard e.g. wolfram alpha definition (which isn't normative) of the median would be 43.5 as well, it is an accepted practice (in plenty of CS grad classes, at least) to have the median guaranteed to be an element of the sample, normally the upper median is then chosen simply as "median". Hence the wiki definition having the qualifier "usual".

In fact, I was surprised that the median is strictly speaking not guarante... (read more)

9jimrandomh8yThanks for spotting this! I looked into it, and it seems to be double-counting the most recent result when computing the median. It's an order-of-initialization issue; it thinks it's getting all the results except the new one, adding it, then taking the median, but it's actually getting a list of all the results. The fix is straightforward; I'll email the admins to apply it.
7DaFranker8y...trolltastic. "Mean 1.25e+18 Median 45.0 Total votes 8"

# 79

You can now write Less Wrong comments that contain polls! John Simon picked up and finished some code I had written back in 2010 but never finished, and our admins Wesley Moore and Matt Fallshaw have deployed it. You can use it right now, so let's give it some testing here in this thread.

The polls work through the existing Markdown comment formatting, similar to the syntax used for links. Full documentation is in the wiki; the short version is that you can write comments like this:

What is your favorite color? [poll]{Red}{Green}{Blue}{Other}

How long has it been your favorite color, in years? [poll:number]

Red is a nice color [poll:Agree....Disagree]

Will your favorite color change? [poll:probability]

To see the results of the poll, you have to vote (you can leave questions blank if you want). The results include a link to the raw poll data, including the usernames of people who submitted votes with the "Vote anonymously" box unchecked. After you submit the comment, if you go back and edit your comment all those poll tags will have turned into [pollid:123]. You can edit the rest of the comment without resetting the poll, but you can't change the options.

It works right now, but it's also new and could be buggy. Let's give it some testing; what have you always wanted to know about Less Wrongers?

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