Re: Joining points of ListPlot

*To*: mathgroup at smc.vnet.net*Subject*: [mg117331] Re: Joining points of ListPlot*From*: Antonio Mezzacapo <ant.mezzacapo at gmail.com>*Date*: Tue, 15 Mar 2011 06:05:46 -0500 (EST)

Yeah I think you are right Bob, maybe the attachment isn't reachable to everyone. I have uploaded the data here http://www.easy-share.com/1914242675/AntonioListPlot.txt <http://www.easy-share.com/1914242675/AntonioListPlot.txt> Antonio 2011/3/14 DrMajorBob <btreat1 at austin.rr.com> > I just checked every e-mail I have on this thread, and this is the first > time I see an example. > > It's an attachment, besides, and attachments don't go to the group. > > Bobby > > > On Mon, 14 Mar 2011 12:53:46 -0500, Antonio Mezzacapo < > ant.mezzacapo at gmail.com> wrote: > > I send you again an example of my data, as an attachment text; however I >> already sent it in a preceeding email. Please pay attention. >> >> Note that there are crossing functions, in one array of points, that I >> want >> to join separetely. >> >> Thank you for care however, >> >> Antonio >> >> 2011/3/14 DrMajorBob <btreat1 at austin.rr.com> >> >> A short, simple example is worth a thousand words. You're still not >>> making >>> yourself clear. >>> >>> Bobby >>> >>> >>> On Mon, 14 Mar 2011 06:01:17 -0500, Antonio Mezzacapo < >>> ant.mezzacapo at gmail.com> wrote: >>> >>> Thank you for answering. >>> >>>> >>>> I don't have any functional form of this points. I have only this array >>>> of >>>> points. Points on this array should be distributed *like* two crossing >>>> functions as Sin[x] and Cos[x], but I don't know the functional form of >>>> these functions. >>>> >>>> All that I have is an array of points! >>>> Because of the fact that these points distribute on the x-y cartesian >>>> plane >>>> like two crossing functions, I cannot use "joined->true" because it >>>> gives >>>> me >>>> strange results. >>>> >>>> Thank you >>>> Antonio >>>> >>>> 2011/3/13 Michael Stern <nycstern at gmail.com> >>>> >>>> Antonio, >>>> >>>>> >>>>> Some points of your question are unclear, but perhaps this will cover >>>>> all >>>>> relevant cases. >>>>> >>>>> 1. If you have functions, the simplest way is: >>>>> >>>>> Plot[{Sin[x], Cos[x]}, {x, 0, 2*Pi}] >>>>> >>>>> 2. You refer to "joined points," however, which suggests that you may >>>>> be >>>>> dealing with lists of points rather than functions. If so, you can do >>>>> the >>>>> same thing as follows: >>>>> >>>>> (* creating the two lists *) >>>>> s1 = Table[Sin[x], {x, 0, 2*Pi, .1}]; >>>>> c1 = Table[Cos[x], {x, 0, 2*Pi, .1}]; >>>>> >>>>> (* plot *) >>>>> ListPlot[{s1, c1}, Joined -> True] >>>>> >>>>> >>>>> 3. You refer to the points not being ordered, from which I take that >>>>> one >>>>> or >>>>> both of the lists of plots has cartesian coordinates, not ordered by >>>>> the >>>>> independent variable. In this case, you can use Sort or SortBy to put >>>>> them >>>>> in order. >>>>> >>>>> (* creating two cartesian lists, neither of which is 'ordered' by the >>>>> definition above *) >>>>> s2 = RotateLeft[Table[{x, Sin[x]}, {x, 0, 2*Pi, .1}]]; >>>>> c2 = RotateRight[Table[{x, Cos[x]}, {x, 0, 2*Pi, .1}]]; >>>>> >>>>> (* plot by sorted versions of these unordered lists *) >>>>> ListPlot[{SortBy[s2, First], SortBy[c2, First]}, Joined -> True] >>>>> >>>>> >>>>> Does that help? >>>>> >>>>> Michael >>>>> >>>>> >>>>> On Mar 13, 2011, at 6:25 AM, Antonio Mezzacapo wrote: >>>>> >>>>> > Hi, >>>>> > here's my problem: >>>>> > >>>>> > I have an array of data depicting two crossing functions (let's say >>>>> like >>>>> > Sin[x] and Cos[x]). How can I arrange them and make a joined points >>>>> plot, >>>>> > that joins only points belonging to the same function? >>>>> > I remember you that the points of the two crossing functions are on >>>>> the >>>>> same >>>>> > array and they are non-ordered. >>>>> > >>>>> > Thank you >>>>> > >>>>> > Antonio Mezzacapo >>>>> > >>>>> >>>>> >>>>> >>> -- >>> DrMajorBob at yahoo.com >>> >>> > > -- > DrMajorBob at yahoo.com >

**Re: How do you plan to solve this problem**

**Re: Wolfram, meet Stefan and Boltzmann**

**Re: Joining points of ListPlot**

**Re: Joining points of ListPlot**