NODESvertex.colorNode colorvertex.frame.colorNode border colorvertex.shapeOne of “none”, “circle”, “square”, “csquare”, “rectangle” “crectangle”, “vrectangle”, “pie”, “raster”, or “sphere”vertex.sizeSize of the node (default is 15)vertex.size2The second size of the node (e.g. for a rectangle)vertex.labelCharacter vector used to label the nodesvertex.label.familyFont family of the label (e.g.“Times”, “Helvetica”)vertex.label.fontFont: 1 plain, 2 bold, 3, italic, 4 bold italic, 5 symbolvertex.label.cexFont size (multiplication factor, device-dependent)vertex.label.distDistance between the label and the vertexvertex.label.degreeThe position of the label in relation to the vertex, where 0 right, “pi” is left, “pi/2” is below, and “-pi/2” is aboveEDGESedge.colorEdge coloredge.widthEdge width, defaults to 1edge.arrow.sizeArrow size, defaults to 1edge.arrow.widthArrow width, defaults to 1edge.ltyLine type, could be 0 or “blank”, 1 or “solid”, 2 or “dashed”, 3 or “dotted”, 4 or “dotdash”, 5 or “l(fā)ongdash”, 6 or “twodash”edge.labelCharacter vector used to label edgesedge.label.familyFont family of the label (e.g.“Times”, “Helvetica”)edge.label.fontFont: 1 plain, 2 bold, 3, italic, 4 bold italic, 5 symboledge.label.cexFont size for edge labels edge.curved Edge curvature, range 0-1 (FALSE sets it to 0, TRUE to 0.5)arrow.modeVector specifying whether edges should have arrows, possible values: 0 no arrow, 1 back, 2 forward, 3 bothOTHERmarginEmpty space margins around the plot, vector with length 4frameif TRUE, the plot will be framedmainIf set, adds a title to the plotsubIf set, adds a subtitle to the plot