Highcharts yaxis negative values error - highcharts

Question

I am using HighCharts to ploot some graph. I want my y-aixs to range between -1 to +1. When i set max=1 and min=-1 for y-axis, it does not work. Is there another way of implementing this. Below is the my code example.
$(opts.containerSelector).find('.chart-container').highcharts({
chart: {
events: {
load: loadLegendSelection
},
},
plotOptions: {
area: {
fillOpacity: 0.7
},
spline: {
marker: {
radius: 3
}
},
series: {
events: {
legendItemClick: storeLegendSelection
}
}
},
legend: {
},
loading: {
labelStyle: { "position": "relative", "top": "45%", "font-weight": "300", "color": "#29303a", "font-size": "22px" }
},
xAxis: {
gridLineDashStyle: 'dash',
gridLineColor: '#c2dce6',
gridLineWidth: 1,
min: minDate,
max: maxDate,
type: 'datetime',
labels: {
formatter: function() {
return formatTimestampTime(this.value);
}
},
events : {
afterSetExtremes : afterSetExtremes.bind(this, opts)
},
minRange: 3600 // one minute
},
yAxis: {
max: 1,
min: -1,
endOnTick: false,
gridLineDashStyle: 'dash',
gridLineColor: '#c2dce6',
gridLineWidth: 1,
labels: {
formatter: function() {
return formatMegawatts(this.value);
}
},
showFirstLabel: false,
title: ''
},
series: convertedData,
exporting: {
enabled: false
},
credits: {
enabled: false
},
tooltip: {
formatter:
function() {
return '<b>' + formatTimestampDateTimeWithSeconds(this.x) + '</b><br>' + formatMegawatts(this.y) + ' ('+ this.series.name + ')';
}
}
});

Answer 1

you can try setting min and max as given below.
yAxis: [{
max:1,
min: -1,
allowDecimals: false,
endOnTick: false,
gridLineWidth: 0,
labels: {
style: {
color: '#767676'
}
},
offset: -10,
title: {
text: 'Inv ' + val_qty,
"textAlign": 'top',
"rotation": 0,
x: 60,
y: yaxisVal,
style: {
color: '#767676',
fontWeight: 'bold'
}
}
}, {
allowDecimals: false,
min: 0,
endOnTick: false,
gridLineWidth: 0,
title: {
text: y2axisname,
"textAlign": 'top',
"rotation": 0,
x: -75,
y: yaxisVal,
style: {
color: '#767676',
fontWeight: 'bold'
}
},
offset: -10,
labels: {
format: '{value}',
style: {
color: '#767676'
}
},
opposite: true
}],