Consider the following list

list = {{1,1,1},{1,2,1},{1,3,2},{1,4,2},

The list is composed of sublists in the form of {x,y,value}, where the first and second element are the coordinates, and the third element is a value which should be assigned in the phase diagram.

In the example above, I would a different color to be assigned to a different number (say 1 - blue, 2 - red, 3 - green).

The result should look like the following

enter image description here

This is a simplified example of a much larger data set, with very small spacings between the {x,y} values, which should eventually produce several colors that represent phases.

  • 2
    $\begingroup$ Why do you call this a "phase plot"? $\endgroup$ – David G. Stork Mar 26 at 20:10
  • $\begingroup$ @Stork, changed to phase diagram, if u know a better terminology please edit. $\endgroup$ – jarhead Mar 27 at 7:13


Graphics[{{Blue, Red, Green}[[#3]], Disk[{#2, #}, 1/3]} & @@@ list,
 AxesOrigin -> {1, 1}/2, FrameStyle -> FontSize -> 28,
 FrameTicks -> {Range[4], Range[4], None, None}, Frame -> True,
 FrameLabel -> {Style["Y", 24], Rotate[Style["X", 24], -90 °]}]

  • 2
    $\begingroup$ Perhaps it is personal preference, but would it be better practice to use the option RotateLabel -> False rather than rotate the "X" label manually? $\endgroup$ – u54112 Mar 27 at 2:23

This approach might appeal

BubbleChart[list /. {x_, y_, z_} -> {y, x, z}, 
 BubbleSizes -> {0.25, 0.25}, 
 ColorFunction -> 
  Function[{x, y, r}, 
   Switch[{x, y, r}, {_, _, 1}, Blue, {_, _, 2}, Red, {_, _, 3}, 
    Green]], ColorFunctionScaling -> False, 
 FrameTicks -> {Range[4], Range[4], None, None}, Frame -> True, 
 FrameLabel -> {"Y", "X"}, RotateLabel -> False]

enter image description here

You can adjust the space between bubbles by changing the BubbleSizes.


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