You should use viewWindow min and max to limit the range of the axis.
vAxis: {
viewWindow: { min: 0, max: 150}
}
The minValue and maxValue options actually only ensure those values are
included, and don't restrict the axis.
The reason the chart is expanding to -50 by default is that the rounded
curve dips below 0. It probably should either not dip below 0, or allow a
small dip without expanding the axis.
On Sun, Jul 24, 2016 at 4:13 AM, jc <[email protected]> wrote:
> Hi,
> What is the best way to indicate min and max value for vertical axis in
> a line chart ?
>
> In the attached doc, gChart generate vaxis from -50 to 150 does'nt make
> sense.
> thanks
>
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