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I want to put the markers symbol and the line type together in the Plotlegend. I have used the following code

Data = {{{0, 1}, {2, 2}, {4, 3}, {6, 4}, {8, 4}, {10, 3}, {12, 
     6}, {14, 2}, {16, 3}, {18, 4}, {20, 8}},
   {{0, 5}, {2, 4}, {4, 3}, {6, 8}, {8, 2}, {10, 6}, {12, 1}, {14, 
     3}, {16, 5}, {18, 1}, {20, 2}},
   {{0, 9}, {2, 8}, {4, 4}, {6, 8}, {8, 5}, {10, 7}, {12, 1}, {14, 
     0}, {16, 0}, {18, 5}, {20, 4}},
   {{0, 3}, {2, 8}, {4, 2}, {6, 1}, {8, 2}, {10, 9}, {12, 0}, {14, 
     8}, {16, 5}, {18, 4}, {20, 7}}};
Xgrid = Range[0, 20, 1];
Ygrid = Range[0, 150, 5];
Ygrid1 = Range[0, 300, 10];
lineColors = {Blue, Red, Blue, Red};
lineWidths = {Thickness[0.003], Dashing, Thickness[0.003], 
   Thickness[0.003]};
markers1 = {Graphics[Rectangle[], ImageSize -> 12], 
   Graphics[Rectangle[], ImageSize -> 12], 
   Graphics[Disk[], ImageSize -> 14], 
   Graphics[Disk[], ImageSize -> 14]};
ListPlot[Data, Frame -> True, Joined -> True, PlotMarkers -> markers1,
  PlotRange -> All, ImageSize -> 800,
 PlotLabel -> Style["m", Black, 32],
 FrameStyle -> Directive[Black, 28, Thick],
 PlotStyle -> {Directive[Red, Thick], Directive[Red, Thick, Dashed], 
   Directive[Blue, Thick], Directive[Blue, Thick, Dashed]},
 FrameLabel -> {"a", "b"},
 PlotLegends -> Placed[SwatchLegend[{"1", " 2", " 3", "4"},
    LabelStyle -> 22, LegendMarkers -> markers1, 
    LegendMarkerSize -> 14], {Left, Bottom}]]

The output I am getting is

enter image description here

I want the plot legend to include line type in it as follows

enter image description here

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  • $\begingroup$ I think you want LineLegend with the appropriate LegendMarkers setting instead. Alternatively, just PlotLegends->Placed[{"a","b",...},...] might already be enough $\endgroup$
    – Lukas Lang
    May 24 '21 at 16:50
  • $\begingroup$ This I have tried, but it was not giving the required result. $\endgroup$ May 27 '21 at 8:14

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