i h am trying to impliment google charts on my page to show a comparison
between 2 years split by month,
to try and understand and to simplify the initial graph i used an example
graph straight from the google charts docs.
this worked fine till i added my own data now i get no display, but if i
veiw source the code is all in the page with the correct data,
i have filled out the dataloader with the correct data programmatically
here is the view source
google.charts.load('current', {'packages':['corechart', 'bar']});
google.charts.setOnLoadCallback(drawStuff);
function drawStuff() {
var button = document.getElementById('change-chart');
var chartDiv = document.getElementById('chart_div');
var data = google.visualization.arrayToDataTable([
['January', 0, 0],
['February', 0, 0],
['March', 0, 0],
['April', 6, 2],
['May', 26, 3],
['June', 0, 0],
['July', 0, 0],
['August', 0, 0],
['September', 0, 0],
['October', 0, 0],
['November',0, 0],
['December', 0, 0],
['TOTAL', 32, 5]
]);
var materialOptions = {
width: 900,
chart: {
title: 'Nearby galaxies',
subtitle: 'distance on the left, brightness on the right'
},
series: {
0: { axis: 'distance' }, // Bind series 0 to an axis named
'distance'.
1: { axis: 'brightness' } // Bind series 1 to an axis named
'brightness'.
},
axes: {
y: {
distance: {label: 'parsecs'}, // Left y-axis.
brightness: {side: 'right', label: 'apparent magnitude'} //
Right y-axis.
}
}
};
var classicOptions = {
width: 900,
series: {
0: {targetAxisIndex: 0},
1: {targetAxisIndex: 1}
},
title: 'Nearby galaxies - distance on the left, brightness on the
right',
vAxes: {
// Adds titles to each axis.
0: {title: 'parsecs'},
1: {title: 'apparent magnitude'}
}
};
function drawMaterialChart() {
var materialChart = new google.charts.Bar(chartDiv);
materialChart.draw(data,
google.charts.Bar.convertOptions(materialOptions));
button.innerText = 'Change to Classic';
button.onclick = drawClassicChart;
}
function drawClassicChart() {
var classicChart = new google.visualization.ColumnChart(chartDiv);
classicChart.draw(data, classicOptions);
button.innerText = 'Change to Material';
button.onclick = drawMaterialChart;
}
drawMaterialChart();
};
here is the page code
google.charts.load('current', {'packages':['corechart', 'bar']});
google.charts.setOnLoadCallback(drawStuff);
function drawStuff() {
var button = document.getElementById('change-chart');
var chartDiv = document.getElementById('chart_div');
var data = google.visualization.arrayToDataTable([
['January', <%=nJan%>, <%=nJan2%>],
['February', <%=nFeb%>, <%=nFeb2%>],
['March', <%=nMar%>, <%=nMar2%>],
['April', <%=nApr%>, <%=nApr2%>],
['May', <%=nMay%>, <%=nMay2%>],
['June', <%=nJun%>, <%=nJun2%>],
['July', <%=nJul%>, <%=nJul2%>],
['August', <%=nAug%>, <%=nAug2%>],
['September', <%=nSep%>, <%=nSep2%>],
['October', <%=nOct%>, <%=nOct2%>],
['November',<%=nNov%>, <%=nNov2%>],
['December', <%=nDec%>, <%=nDec2%>],
['TOTAL', <%=nTot%>, <%=nTot2%>]
]);
var materialOptions = {
width: 900,
chart: {
title: 'Nearby galaxies',
subtitle: 'distance on the left, brightness on the right'
},
series: {
0: { axis: 'distance' }, // Bind series 0 to an axis named
'distance'.
1: { axis: 'brightness' } // Bind series 1 to an axis named
'brightness'.
},
axes: {
y: {
distance: {label: 'parsecs'}, // Left y-axis.
brightness: {side: 'right', label: 'apparent magnitude'} //
Right y-axis.
}
}
};
var classicOptions = {
width: 900,
series: {
0: {targetAxisIndex: 0},
1: {targetAxisIndex: 1}
},
title: 'Nearby galaxies - distance on the left, brightness on the
right',
vAxes: {
// Adds titles to each axis.
0: {title: 'parsecs'},
1: {title: 'apparent magnitude'}
}
};
function drawMaterialChart() {
var materialChart = new google.charts.Bar(chartDiv);
materialChart.draw(data,
google.charts.Bar.convertOptions(materialOptions));
button.innerText = 'Change to Classic';
button.onclick = drawClassicChart;
}
function drawClassicChart() {
var classicChart = new google.visualization.ColumnChart(chartDiv);
classicChart.draw(data, classicOptions);
button.innerText = 'Change to Material';
button.onclick = drawMaterialChart;
}
drawMaterialChart();
};
any help you could give me here would be greatly appreciated
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