How to input simple datas in a chart?

The data you posted looks OK.

If the chart is not showing up it must be something else.

Can you post your whole chart code?

The code I did add are in strong characters:

var chartData = generatechartData();

function generatechartData() {
var chartData = [];
var firstDate = new Date();
firstDate.setDate(firstDate.getDate() – 150);

for (var i = 0; i < 150; i++) {
// we create date objects here. In your data, you can have date strings
// and then set format of your dates using chart.dataDateFormat property,
// however when possible, use date objects, as this will speed up chart rendering.
var newDate = new Date(firstDate);
newDate.setDate(newDate.getDate() + i);

var visits = Math.round(Math.random() * 100 – 50);

chartData.push({
date: newDate,
visits: visits
});
}
return chartData;
}

var chart = AmCharts.makeChart(“chartdiv”, {
“theme”: “none”,
“type”: “serial”,
“autoMargins”: false,
“marginLeft”:8,
“marginRight”:8,
“marginTop”:10,
“marginBottom”:26,
“pathToImages”: “https://www.amcharts.com/lib/3/images/&#8221;,
“dataProvider”: chartData,
“valueAxes”: [{
“axisAlpha”: 0,
“inside”: true
}],
“graphs”: [{
“balloonText”: “category<b>value: value</b>”,
“bullet”: “round”,
“bulletBorderAlpha”: 1,
“bulletBorderColor”: “#FFFFFF”,
“hideBulletsCount”: 50,
“lineThickness”: 2,
“lineColor”: “#fdd400”,
“negativeLineColor”: “#67b7dc”,
“valueField”: “visits”
}],
“dataProvider”: [{
“date”: “2013-10-23”,
“value”: 250
}, {
“date”: “2012-12-23”,
“value”: 300
}],

“chartScrollbar”: {
},
“chartCursor”: {
},
“categoryField”: “date”,
“categoryAxis”: {
“parseDates”: true,
“axisAlpha”: 0,
}
});

chart.addListener(“dataUpdated”, zoomChart);
zoomChart();

function zoomChart(){
chart.zoomToIndexes(130, chartData.length – 1);
}

The problem is that you have the “dataProvider” property set twice.

Delete the following line:

"dataProvider": chartData,

Hi,

I did delete the line “dataProvider”: chartData,, but something is strange, I can see the correct calendar date on the abscisse but not the the line.

You also need to update your graph settings to use correct field in data.

You currently have set valueField set to “visits”. There’s no such field in your data. Try replacing that line with:

"valueField": "value"

Perfect, thanks.