*To*: mathgroup@smc.vnet.net*Subject*: [mg10927] Re: Error Bars*From*: Paul Abbott <paul@physics.uwa.edu.au>*Date*: Thu, 12 Feb 1998 20:16:09 -0500*Organization*: University of Western Australia*References*: <6br6vm$dkc@smc.vnet.net>

Gernot August Weber wrote: > i need to draw error bars in mathematica. is there any possibility > without writing an own routine? > > please mail to: > > gweber@student.physik.uni-mainz.de Recently there was another posting related to this topic by Ben Yung <benyung@unixg.ubc.ca>. Here was my reply to Ben: In[1]:= data=Table[{x,Sin[x]},{x,0.,3,0.5}]; Generate two lists of errors: In[2]:= xerror=Table[{-1,1}Random[]/3,{Length[data]}]; In[3]:= yerror=Table[{-1,1}Random[]/3,{Length[data]}]; (I have symmetric errors generated by direct multiplication by {-1,1}. In[4]:= <<Graphics`MultipleListPlot` Here are the errorbars In[5]:= errorbars= Apply[ErrorBar,Transpose[{xerror,yerror}],{1}]; Now we can write In[6]:= MultipleListPlot[Transpose[{data,errorbars}]]; Cheers, Paul ____________________________________________________________________ Paul Abbott Phone: +61-8-9380-2734 Department of Physics Fax: +61-8-9380-1014 The University of Western Australia Nedlands WA 6907 mailto:paul@physics.uwa.edu.au AUSTRALIA http://www.pd.uwa.edu.au/~paul God IS a weakly left-handed dice player ____________________________________________________________________