Did you try starting it with [-1,0,0], ...

On Feb 13, 2018 4:17 AM, "Domh4445" <domh4...@gmail.com> wrote:

> more .....
>
> with this it starts a "1"
> [[0, 0, 0],-13.8,  1.8,-11.8],
> [[0 ,15, 0],  0.9,  1.8,  2.4],
> [[0,30, 0],  5.4,  1.8,  5.7],
> [[0, 45, 0],  1.7,  1.8, 10.5],
> [[1, 0, 0], 11.9,  1.8, 10.4],
> [[1, 15, 0],  8.8, 13.6,  7.7],
> [[1, 30, 0],  7.6, 12.3,  9.6],
> [[1, 45, 0], 12.3,  9.2, 10.6],
> [[2, 0, 0], 16.9,  2.9, 14.8]
>
> but with this, it start at "9"
> [[8, 0, 0],-13.8,  1.8,-11.8],
> [[8 ,15, 0],  0.9,  1.8,  2.4],
> [[8,30, 0],  5.4,  1.8,  5.7],
> [[8, 45, 0],  1.7,  1.8, 10.5],
> [[9, 0, 0], 11.9,  1.8, 10.4],
> [[9, 15, 0],  8.8, 13.6,  7.7],
> [[9, 30, 0],  7.6, 12.3,  9.6],
> [[9, 45, 0], 12.3,  9.2, 10.6],
> [[10, 0, 0], 16.9,  2.9, 14.8]
>
>
>
> Le lundi 12 février 2018 17:56:16 UTC+1, Domh4445 a écrit :
>>
>> Hello
>>
>> IWith the following script, I would expect the hAxis starting at "0" but
>> it starts at "1" ( see the picture attached)..
>>
>> Any idea what's wrong ?
>>
>> Thanks in advance
>>
>>
>> <script type="text/javascript" src="https://www.gstatic.com/c
>> harts/loader.js"></script>
>>     <script type="text/javascript">
>>       google.charts.load('current', {'packages':['line']});
>>       google.charts.setOnLoadCallback(drawChart);
>>
>>     function drawChart() {
>>
>>       var data = new google.visualization.DataTable();
>>       data.addColumn('timeofday', 'Heure');
>>       data.addColumn('number', 'Hier');
>>       data.addColumn('number', 'Aujourd hui');
>>       data.addColumn('number', 'Avant hier');
>>
>>       data.addRows([
>> [[0, 0, 0],-13.8,  1.8,-11.8],
>> [[0 ,15, 0],  0.9,  1.8,  2.4],
>> [[0,30, 0],  5.4,  1.8,  5.7],
>> [[0, 45, 0],  1.7,  1.8, 10.5],
>> [[1, 0, 0], 11.9,  1.8, 10.4],
>> [[1, 15, 0],  8.8, 13.6,  7.7],
>> [[1, 30, 0],  7.6, 12.3,  9.6],
>> [[1, 45, 0], 12.3,  9.2, 10.6],
>> [[2, 0, 0], 16.9,  2.9, 14.8]
>>       ]);
>>
>>       var options = {
>>         chart: {
>>           title: 'Temperature Chevry Ext',
>>           subtitle: 'mesure chaque quart d heure'
>>         },
>>
>>         width: 900,
>>         height: 500,
>>         hAxis: {
>>           title: 'heures' , format: 'H m'
>>         }
>>       };
>>
>>       var chart = new google.charts.Line(document.ge
>> tElementById('line_top_x'));
>>
>>       chart.draw(data, google.charts.Line.convertOptions(options));
>>     }
>>   </script>
>>
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