This function allow you to populate your data series with random values. You can manage multiple data series in a single pData object. It is possible to set extra parameters with the $Option array. To learn more about this please read the Format array guide.

addRandomValues($SerieName="Serie1",$Option="");

Where :


If SerieName isn‘t provided, the points will be added to Serie1.


It is possible to give extra parameters to the randomizer engine. If nothing is provided, 20 integers between 0 and 100 will be added to the selected serie.

 /* Add a 20 random integers between 0-100 in Serie1 */
 $myData->addRandomValues();

 /* Add a 10 random integers between 0-100 in Serie2 */
 $randomOptions = array("Values"=>10);
 $myData->addRandomValues("Serie2",$randomOptions);

 /* Add a 100 random floats between 10-20 in Serie3 */
 $randomOptions = array("Values"=>100,"Min"=>10,"Max"=>20,"withFloat"=>TRUE);
 $myData->addRandomValues("Serie3",$randomOptions);

This will populate Serie1, Serie2, Serie3 with random values.

 include("class/pData.class.php");
 include("class/pDraw.class.php");
 include("class/pImage.class.php");

 $MyData = new pData();  
 $MyData->addRandomValues("Probe 1",array("Values"=>50,"Min"=>0,"Max"=>4));
 $MyData->addRandomValues("Probe 2",array("Values"=>50,"Min"=>6,"Max"=>10));
 $MyData->addRandomValues("Probe 3",array("Values"=>50,"Min"=>12,"Max"=>16));
 $MyData->addRandomValues("Probe 4",array("Values"=>50,"Min"=>18,"Max"=>22));
 $MyData->setAxisName(0,"Probes");

 $myPicture = new pImage(700,230,$MyData);
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,array("StartR"=>180,"StartG"=>193,"StartB"=>91,"EndR"=>120,"EndG"=>137,"EndB"=>72,"Alpha"=>100));
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_HORIZONTAL,array("StartR"=>180,"StartG"=>193,"StartB"=>91,"EndR"=>120,"EndG"=>137,"EndB"=>72,"Alpha"=>20));
 $myPicture->drawGradientArea(0,0,700,20,DIRECTION_VERTICAL,array("StartR"=>0,"StartG"=>0,"StartB"=>0,"EndR"=>50,"EndG"=>50,"EndB"=>50,"Alpha"=>100));
 $myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0));
 
 $myPicture->setFontProperties(array("FontName"=>"fonts/Silkscreen.ttf","FontSize"=>6));
 $myPicture->drawText(10,13,"addRandomValues() :: assess your scales",array("R"=>255,"G"=>255,"B"=>255));

 $myPicture->setFontProperties(array("FontName"=>"fonts/Forgotte.ttf","FontSize"=>11));
 $myPicture->setGraphArea(50,60,670,190);
 $myPicture->drawFilledRectangle(50,60,670,190,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10));
 $myPicture->drawScale(array("LabelSkip"=>3,"DrawSubTicks"=>TRUE));

 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 $myPicture->drawText(50,52,"Magnetic noise",array("FontSize"=>20,"Align"=>TEXT_ALIGN_BOTTOMLEFT));

 $myPicture->setFontProperties(array("FontName"=>"fonts/pf_arma_five.ttf","FontSize"=>6));
 $myPicture->drawSplineChart();
 $myPicture->setShadow(FALSE);

 $myPicture->drawLegend(475,50,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));

 $myPicture->Render("addrandomvalues.png");