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Highcharts, How to remove gaps on x coordinates

For a Highcharts spline type chart, I want to completely remove the left and right spaces.
I tried to change some options but there is no success.
Spacing and margin keys did not make any appearance changes.
Does anyone have any info on how to remove the spaces, all help is welcome.
Example chart
Highcharts.chart('container', {
title: {
text: ''
},
chart: {
type: 'spline',
},
legend: {
display: false
},
xAxis: {
categories: [7, 13, 16, 18, 19, 20, 29, 22, 25, 38, 23, 26, 28, 29, 33],
},
yAxis: {
tickPosition: 'inside',
min: 0,
title: {
text: null
},
floor: 0,
tickWidth: 1
},
series: [{
name: 'John',
data: [5, 3, 4, 7, 2]
}, {
name: 'Jane',
data: [2, 2, 3, 2, 1]
}, {
name: 'Joe',
data: [3, 4, 4, 2, 5]
}]
});
<script src="https://code.highcharts.com/highcharts.js"></script>
<div id="container" style="height: 400px; width: 500px"></div>

These gaps are added when using the xAxis.categories option. If you remove these options then it works the way you want. For tick positioning in this case it is better to set other available API options. Find out more about it here: https://api.highcharts.com/highcharts/xAxis.tickPositions

After Drilldown, Drillup button overlaps with chart

I have a Highcharts column chart with drilldown and when I do drill down there is a problem. When I drill down the drill up button appears with overlapping with the chart. Is there a way to place this drill up button without overlapping with the chart.
Following is a sample code.
http://jsfiddle.net/yasirunilan/gt8n96ck/
// Create the chart
Highcharts.chart('container', {
chart: {
type: 'column'
},
title: {
text: 'Highcharts multi-series drilldown'
},
subtitle: {
text: 'Click columns to drill down to single series. Click categories to drill down both.'
},
xAxis: {
type: 'category'
},
plotOptions: {
series: {
borderWidth: 0,
dataLabels: {
enabled: true
}
}
},
series: [{
name: '2010',
data: [{
name: 'Republican',
y: 5,
drilldown: 'republican-2010'
}, {
name: 'Democrats',
y: 2,
drilldown: 'democrats-2010'
}, {
name: 'Other',
y: 4,
drilldown: 'other-2010'
}]
}, {
name: '2014',
data: [{
name: 'Republican',
y: 4,
drilldown: 'republican-2014'
}, {
name: 'Democrats',
y: 4,
drilldown: 'democrats-2014'
}, {
name: 'Other',
y: 4,
drilldown: 'other-2014'
}]
}],
drilldown: {
series: [{
id: 'republican-2010',
data: [
['East', 4],
['West', 2],
['North', 1],
['South', 4]
]
}, {
id: 'democrats-2010',
data: [
['East', 6],
['West', 2],
['North', 2],
['South', 4]
]
}, {
id: 'other-2010',
data: [
['East', 2],
['West', 7],
['North', 3],
['South', 2]
]
}, {
id: 'republican-2014',
data: [
['East', 2],
['West', 4],
['North', 1],
['South', 7]
]
}, {
id: 'democrats-2014',
data: [
['East', 4],
['West', 2],
['North', 5],
['South', 3]
]
}, {
id: 'other-2014',
data: [
['East', 7],
['West', 8],
['North', 2],
['South', 2]
]
}]
}
});
In following way issue can be reproduced.
Select 2010 from the Legend, then click on republicans to drill down. The chart gets overlapped with button.

To avoid overlapping the button with a chart, you can move drillUpButton outside the plot area:
drillUpButton: {
position: {
x: 0,
y: -35,
}
}
Live demo: http://jsfiddle.net/BlackLabel/v8azqpo3/
API: https://api.highcharts.com/highcharts/drilldown.drillUpButton.position.y

Creating border around a column in Highcharts with different border widths for top and bottom

I'm trying to create a border around two parts of a stacked column in Highcharts.
Right now I can create the borders separately for each part but this way they will be separated by a line in the middle of them. (http://jsfiddle.net/chazyzyj/) Is there a way to set the top and bottom part of the border to different sizes?
Or any other solutions?
series: [{
name: 'John',
data: [5, 3, 4, 7, 2]
}, {
name: 'Jane',
data: [2, 2, 3, 2, 1],
borderWidth: 2,
borderColor: 'red',
}, {
name: 'Joe',
data: [3, 4, 4, 2, 5],
borderWidth: 2,
borderColor: 'red',
}]

Highcharts Area Chart - Specifying Area Color

I'm new to coding, and I feel like this answer shouldn't be very difficult; yet, I've struggled with it for about two days now and so I'm looking for help.
I'm trying to specify the colors of areas in Highcharts' "Area Chart with Negative Values". I'm using Highcharts' basic template, but can't figure out how to change the colors of the respective areas.
Here's the JSfiddle that includes me trying to specify the color; when I do so, the chart fails to run. (Notice I've tried to change the color of the "john" series).
http://jsfiddle.net/aoouym2o/
I followed the instructions given in HighCharts' API, but I can't make it work. Here's the API section: http://api.highcharts.com/highcharts#plotOptions.area.color
Again, here's the original code without me trying to change any color:
$(function () {
$('#container').highcharts({
chart: {
type: 'area'
},
title: {
text: 'Area chart with negative values'
},
xAxis: {
categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
},
credits: {
enabled: false
},
series: [{
name: 'John',
data: [5, 3, 4, 7, 2]
}, {
name: 'Jane',
data: [2, -2, -3, 2, 1]
}, {
name: 'Joe',
data: [3, 4, 4, -2, 5]
}]
});
});
What am I missing?

You did it exactly right, you were just missing a comma before your added color setting ;)
series: [{
name: 'John',
data: [5, 3, 4, 7, 2],
color: '#FF0000'
},
Here is a link to a modified fiddle. (updated link to the working version)

You can set color for the chart by specifying it in each series object:
series: [{
name: 'John',
data: [5, 3, 4, 7, 2],
color: '#0000FF'
}, {
name: 'Jane',
data: [2, -2, -3, 2, 1],
color: '#FF0000'
}, {
name: 'Joe',
data: [3, 4, 4, -2, 5],
color: '#00FF00'
}]

Just change color setting :P
series: [{
name: 'John',
data: [5, 3, 4, 7, 2],
color : '#f7a35c'
}, {
name: 'Jane',
data: [2, -2, -3, 2, 1],
color: '#7cb5ec'
}, {
name: 'Joe',
data: [3, 4, 4, -2, 5],
color: '#90ed7d'
}]
and if you want to change the color of the number > 0 watch
http://www.highcharts.com/docs/chart-concepts/series

Add option:
plotOptions: {
series: {
lineColor: '#303030'
}
},

How to append highcharts on same div?

I have a code to plot a highcharts on my website, I need to plot multiple charts on same div(container), so please guide to reach this, below is my code
$('#container').highcharts('StockChart', {
chart: {
borderColor: 'black',
borderWidth: 0,
borderRadius: 10,
height:150
},
I tried this for append $('#container').append.highcharts('StockChart', but it seems like a wrong syntex,please share your answer,thanks

Taken directly from highcharts documentation pages:
To combine several chart types in one chart you only need to create series of different types:
series: [{
type: 'column',
name: 'Jane',
data: [3, 2, 1, 3, 4]
}, {
type: 'column',
name: 'John',
data: [2, 3, 5, 7, 6]
}, {
type: 'column',
name: 'Joe',
data: [4, 3, 3, 9, 0]
}, {
type: 'spline',
name: 'Average',
data: [3, 2.67, 3, 6.33, 3.33]
}]
JSfiddle example.

Repeat the following process for each child chart you need.
var chartDiv = document.createElement('div'); // Create a new div
$('#container').append(chartDiv); // Append it to your container
$(chartDiv).highcharts(.....); // Initialize highcharts in that div