addPoints(array(10,8,13,9,11,14,6,4,12,7,5),"X1"); $myData->addPoints(array(8.04,6.95,7.58,8.81,8.33,9.96,7.24,4.26,10.84,4.82,5.68),"Y1"); $myData->addPoints(array(10,8,13,9,11,14,6,4,12,7,5),"X2"); $myData->addPoints(array(9.14,8.14,8.74,8.77,9.26,8.1,6.13,3.1,9.13,7.26,4.74),"Y2"); $myData->addPoints(array(10,8,13,9,11,14,6,4,12,7,5),"X3"); $myData->addPoints(array(7.46,6.77,12.74,7.11,7.81,8.84,6.08,5.39,8.15,6.42,5.73),"Y3"); $myData->addPoints(array(8,8,8,8,8,8,8,19,8,8,8),"X4"); $myData->addPoints(array(6.58,5.76,7.71,8.84,8.47,7.04,5.25,12.5,5.56,7.91,6.89),"Y4"); /* Create the X axis */ $myData->setAxisName(0,"X"); $myData->setAxisXY(0,AXIS_X); $myData->setAxisPosition(0,AXIS_POSITION_BOTTOM); /* Create the Y axis */ $myData->setSerieOnAxis("Y1",1); $myData->setSerieOnAxis("Y2",1); $myData->setSerieOnAxis("Y3",1); $myData->setSerieOnAxis("Y4",1); $myData->setAxisName(1,"Y"); $myData->setAxisXY(1,AXIS_Y); $myData->setAxisPosition(1,AXIS_POSITION_LEFT); /* Create the scatter chart binding */ $myData->setScatterSerie("X1","Y1",0); $myData->setScatterSerie("X2","Y2",1); $myData->setScatterSerie("X3","Y3",2); $myData->setScatterSerie("X4","Y4",3); $myData->setScatterSerieDrawable(1,FALSE); $myData->setScatterSerieDrawable(2,FALSE); $myData->setScatterSerieDrawable(3,FALSE); /* Create the pChart object */ $myPicture = new pImage(800,582,$myData); /* Draw the background */ $Settings = array("R"=>170, "G"=>183, "B"=>87, "Dash"=>1, "DashR"=>190, "DashG"=>203, "DashB"=>107); $myPicture->drawFilledRectangle(0,0,800,582,$Settings); /* Overlay with a gradient */ $Settings = array("StartR"=>219, "StartG"=>231, "StartB"=>139, "EndR"=>1, "EndG"=>138, "EndB"=>68, "Alpha"=>50); $myPicture->drawGradientArea(0,0,800,582,DIRECTION_VERTICAL,$Settings); /* Add a border to the picture */ $myPicture->drawRectangle(0,0,799,581,array("R"=>0,"G"=>0,"B"=>0)); /* Write the title */ $myPicture->setFontProperties(array("FontName"=>"../fonts/Forgotte.ttf","FontSize"=>23)); $myPicture->drawText(55,50,"Anscombe's Quartet drawing example",array("R"=>255,"G"=>255,"B"=>255)); $myPicture->drawText(55,65,"This example demonstrate the importance of graphing data before analysing it. (The line of best fit is the same for all datasets)",array("FontSize"=>12,"R"=>255,"G"=>255,"B"=>255)); /* Set the default font */ $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6)); /* Create the Scatter chart object */ $myScatter = new pScatter($myPicture,$myData); /* Turn on shadow computing */ $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10)); /* Draw the 1st chart */ $myPicture->setGraphArea(56,90,380,285); $myScatter->drawScatterScale(array("XMargin"=>5,"YMargin"=>5,"Floating"=>TRUE,"DrawSubTicks"=>TRUE)); $myScatter->drawScatterPlotChart(); $myScatter->drawScatterBestFit(); /* Draw the 2nt chart */ $myData->setScatterSerieDrawable(0,FALSE); $myData->setScatterSerieDrawable(1,TRUE); $myPicture->setGraphArea(436,90,760,285); $myScatter->drawScatterScale(array("XMargin"=>5,"YMargin"=>5,"Floating"=>TRUE,"DrawSubTicks"=>TRUE)); $myScatter->drawScatterPlotChart(); $myScatter->drawScatterBestFit(); /* Draw the 3rd chart */ $myData->setScatterSerieDrawable(1,FALSE); $myData->setScatterSerieDrawable(2,TRUE); $myPicture->setGraphArea(56,342,380,535); $myScatter->drawScatterScale(array("XMargin"=>5,"YMargin"=>5,"Floating"=>TRUE,"DrawSubTicks"=>TRUE)); $myScatter->drawScatterPlotChart(); $myScatter->drawScatterBestFit(); /* Draw the 4th chart */ $myData->setScatterSerieDrawable(2,FALSE); $myData->setScatterSerieDrawable(3,TRUE); $myPicture->setGraphArea(436,342,760,535); $myScatter->drawScatterScale(array("XMargin"=>5,"YMargin"=>5,"Floating"=>TRUE,"DrawSubTicks"=>TRUE)); $myScatter->drawScatterPlotChart(); $myScatter->drawScatterBestFit(); /* Render the picture (choose the best way) */ $myPicture->autoOutput("pictures/example.drawAnscombeQuartet.png"); ?>