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I want to create a background 60*100 matrix and insert inside it the calculated values, for example

data = {{1, 60.51}, {2, 24.5115}, {3, 9.92919}, {4, 4.02214}, {5, 1.6293}, {6, 0.66}}

The rest elements of the matrix are zeros. Then instead of plotting data I want to plot their corresponding indices in the matrix. The result should look like this:

Like the photo

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    $\begingroup$ I don't understand what you're asking for here. Could you give some more detail about what you need? Preferably a minimal example of the input and desired output? $\endgroup$
    – Sjoerd Smit
    Nov 26, 2020 at 10:24
  • $\begingroup$ @SjoerdSmit thanks! I updated the question by adding a photo as an example. $\endgroup$
    – Shaaban
    Nov 26, 2020 at 10:46

1 Answer 1

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array = Array[Subscript[m, ##] &, {8, 5}];
{checkmark, dot} = {"✓", "\[FilledSmallCircle]"};

labeledcells = Join[Thread[{1, Range[5]}], {{2, 1}, {8, 1}}];
markedcells = {{2, 2}, {4, 3}, {6, 5}};
dottedcells = Complement[Tuples[{Range[8], Range[5]}], labeledcells, markedcells];

array2 = ReplacePart[array, {markedcells :> checkmark, dottedcells :> dot}];

MatrixForm[array2]

enter image description here

ArrayPlot[array2 /. {dot -> White, checkmark -> Green, _Subscript -> Red}, 
 Mesh -> All, Frame -> True, FrameTicks -> Automatic,
 Epilog -> MapIndexed[Text[Style[#, 16, Black], #2 - .5] &, 
   Reverse /@ Transpose @ array2, {2}]]

![enter image description here

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  • $\begingroup$ Thanks! How to over-plot the x and y axes with ticks? $\endgroup$
    – Shaaban
    Nov 26, 2020 at 14:16
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    $\begingroup$ @Shaaban, just add the options Frame -> True and FrameTicks -> Automatic. $\endgroup$
    – kglr
    Nov 26, 2020 at 17:39

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