Re: multiple dataset in linechart in google visualization

[asgallant]

You have to have both series of data in a single DataTable.  Your data set would look like this:

x   y1    y2
1   3     null
2   5     3
3   null  5
4   6     null

5   null  4

6   null  7

7   8     null

Use a DataTable with that set to draw the chart.  In the chart options, set the "interpolateNulls" option to true, which prevents your lines from having holes in them where the nulls are.

On Wednesday, December 5, 2012 9:15:40 AM UTC-5, Neri Martinez wrote:

Hi,

i have to draw a linechart with one, two o a lot of dataset.

example:

dataset1

x  y

1  3

2  5

4  6 

7  8

dataset2

x  y

2  3

3  5

5  4

6  7

The problem here is that "x" axis data is not the same for both dataset. How can i add these two dataset to a line chart ?

for one dataset i do (in grails):

data = google.visualization.arrayToDataTable(${chartData});

chart = new google.visualization.LineChart(document.getElementById('second_chart_div'));

         chart.draw(data);

but i can't add another dataset (datatable)

how can i do that?

thanks!