This demonstrates a logarithmic chart using log(10). It has custom Y labels.
This goes in the documents header:<script src="RGraph.common.core.js"></script> <script src="RGraph.line.js"></script>Put this where you want the chart to show up:
<canvas id="cvs" width="600" height="250"> [No canvas support] </canvas>This is the code that generates the chart:
<script> data = [1000000,5,6,4,6,8012,12,7]; for (i=0;i<data.length; ++i) { data[i] = RGraph.log(data[i], 10); // This function is in RGraph.common.core.js } // Create the Bar and then use the set method to configure // the chart so that the Bar object can be used in the // configuration bar = new RGraph.Bar({ id: 'cvs', data: data }); bar.set({ yaxisTickmarksCount: 6, yaxisScaleMax: 6, yaxisLabelsSpecific: ['1,000,000', '100,000', '10000', '1,000', '100', '10', '0'], xaxisLabels: ['Pob','Libby','June','Hoolio','Jane','Daz','Luis','John'], xaxisTickmarksCount: 8, textSize: 14, marginLeft: 95, backgroundGridHlinesCount: 6, backgroundGridVlinesCount: 7, colorsStroke: 'transparent', shadow: false }).draw(); </script>