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Thread: summary: What does 1st Qu. & 3rd Qu. mean?

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    summary: What does 1st Qu. & 3rd Qu. mean?




    Hi All

    I have a time series dataset which produnes the following stats from the summary function

    Min 1st Qu Median Mean 3rd Qu Max
    51690 57530 97330 112500 167300 216700

    What does the 1st Qu. & 3rd Qu. mean? I cannot find where this is explained anywhere.

    Any help on this would be very much appreciated

    Regards
    Donal

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    Re: summary: What does 1st Qu. & 3rd Qu. mean?

    Its simple.
    First quartile(Q1) means 25% observations are below this quantity(approx)
    Third quartile(Q3) means 75% observations are below this quantity(approx)

    See this link for more info
    http://en.wikipedia.org/wiki/Quartile
    In the long run, we're all dead.

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    Re: summary: What does 1st Qu. & 3rd Qu. mean?


    Quote Originally Posted by donal30 View Post
    Hi All

    Regards
    Donal
    I wanted to tell you to use the help function in R: ?summary
    but after checking it myself I saw it was not very useful.

    Therefore I hope vinux's answer helps.
    The true ideals of great philosophies always seem to get lost somewhere along the road..

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