Re: Plotting just specific points

*To*: mathgroup at smc.vnet.net*Subject*: [mg54097] Re: [mg54043] Plotting just specific points*From*: DrBob <drbob at bigfoot.com>*Date*: Thu, 10 Feb 2005 02:47:07 -0500 (EST)*References*: <200502091427.JAA02654@smc.vnet.net>*Reply-to*: drbob at bigfoot.com*Sender*: owner-wri-mathgroup at wolfram.com

a = {5, 1, 2, 2, 6, 7, 2, 2, 8, 2}; pairs = Transpose@{Range@Length@a, a}; This leaves out data that doesn't have y == 2: ListPlot@Cases[pairs, {_, 2}]; And this shows all the data but emphasizes points with y == 2. point[p : {_, 2}] := {AbsolutePointSize[5], Point@p} point@p_ := Point@p Show[Graphics@{AbsolutePointSize[3], point /@ pairs}, Frame -> True] Bobby On Wed, 9 Feb 2005 09:27:15 -0500 (EST), zak <chocolatez at gmail.com> wrote: > if i have the list: > a={5,1,2,2,6,7,2,2,8,2} > and in the ListPlot[a] i want to show only the points wich represent > only the "2" while preserving the positions of the "2" in the list, so > i could focus my attention to a specific wanted values, how could i do > that > or even better if it is possible to plot the whole values of > ListPlot[a] while making the points "2" in red color as an example. > thanks > zak > > > > -- DrBob at bigfoot.com www.eclecticdreams.net

**References**:**Plotting just specific points***From:*zak <chocolatez@gmail.com>