Re: 2D plots of data points

*To*: mathgroup at smc.vnet.net*Subject*: [mg109695] Re: 2D plots of data points*From*: Bill Rowe <readnews at sbcglobal.net>*Date*: Wed, 12 May 2010 07:33:53 -0400 (EDT)

On 5/11/10 at 6:27 AM, niels.martinsen at gmail.com (Niles) wrote: >I have the data-points {1,2,3}, {4,5,6} and {7,8,9} and I wish to >plot them in a 2D-plot (x,y) ranging from x:0..2 and y:-2..0. The >coordinates of the points should be >1: (0,0) 2: (1,0) 3: (2,0) 4: (0,-1) 5: (1,-1) 6: (2,-1) 7: (0,-2) >8: (1,-2) 9: (2,-2) >Is there a smart way of doing this? is it furthermore possible to >make the data-points larger, i.e. so there is no white-space between >the points? Any hints/help will be greatly appreciated. You can plot a list of data points using ListPlot. First, define your data list using Mathematica syntax for lists: data = {{0, 0}, {1, 0}, {2, 0}, {0, -1}, {1, -1}, {2, -1}, {0, -2}, {1, -2}, {2, -2}}; Then plot your data ListPlot[data, PlotStyle -> {PointSize[.05]}] For standard size points, delete the PlotStyle option. For larger points increase the value for PointSize. Note, if you make the points really large you will need to add a PlotRange option to increase the size of the plot range in order to see the entire point.