Grapher help- error bars

Discussion in 'Mac Apps and Mac App Store' started by starexplorer31, Apr 12, 2011.

  1. starexplorer31 macrumors newbie

    Joined:
    Apr 12, 2011
    #1
    Is there any way to graph error bars on a data set plotted using grapher?
     
  2. YB24 macrumors member

    Joined:
    Apr 3, 2007
    Location:
    Dordogne-France http://y.barois.free.fr/grapher/
    #2
    Grapher : error bars

    Bonjour !
    The answer is NO, BUT :
    1) not very useful : as any piece of a straight line can be graphed with one equation, so you may graph each error bar !
    2) better : if the point set in Grapher comes from a Numbers or Excel or OOo or NeoOffice table, it is very easy to add two more (y1), (y2) values list to the first one (y0) ; y1 = y0 + n% or y0 + k y2 = y0 - n% or y0 - k ; enter this in Grapher point sets and you'll get maximum, minimum, medium for each x value and three curves instead of error bars.
    See examples in attached files.
    Au revoir, YB24
     

    Attached Files:

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