I have a candlestick and volume series chart. Candlestick series has values
[0: 114652800,1: 171.15, 2: 171.35, 3: 170.65, 4: 170.65]
And volume chart values
[0:114652800, 1:218]
(gave a dataset for each series getting from database).
Now the problem is when I want to show both the series on a single yAxis, the volume series is missing. Then I tried to use two yAxis, then the volume data are showing in millions.
so I am confused as after the console log it shows values [0:114652800, 1:218]. But plotting shows labels in millions. I use vue highcharts. Please help.
Related
I am plotting a 2D scatter plot from a dataframe in a dash app.
X axis is my index (price points)
Then I have a number of columns corresponding to Y values for different dates (columns 2020, 2021 etc).
And I’d like to add a slider to only show Y values from a specific year.
The trick is, I don’t want to reload the dataframe each time as it takes a long time to generate and I can’t set it as a global variable because will be used by several people at the time.
Is there a way to keep all of that in memory ? Or to avoid reloading the dataframe ?
While working on Qliksense, Gauge/Scatter chart is showing horizontal line for large data at one point. Currently, the limitation is if there are more than 1000 data values at any given point in the scatter chart will show as horizontal line at one point. Is there any alternative way to resolve this issue for large data in Qliksense
In a context of a line chart displaying time data in regular intervals where multiple series might overlap what would be the optimal way to:
A) hint the user that the chart has overlapping series?
B) give the user the capability to visualize all those series? Like spanning the series somehow?
For overlapping series in a line chart, I would keep the traditional line chart but put a label at the end of the graph with a color legend. The legend and label will help the user get information quickly.
Another version of a line chart for overlapping series can be a line area chat.
If you are not stuck on only line charts, I would suggest a bar chart. Below are some examples that you can use.
Example 1:
Example 2:
Example 3:
There are couple ways to indicate that there are overlapping series on a chart. You can increase the marker radius of one of them. The number of legend elements tells you how many series there is, too. Finally, you can distribute series on a different yAxis, with different top and height properties. Also, in styled mode, when you hover on legend item, other series opacity changes.
API Reference:
http://api.highcharts.com/highcharts/plotOptions.line.marker.radius
Examples:
http://jsfiddle.net/whsgpdyw/ - changing marker radius
http://jsfiddle.net/fuq6j4sg/ - each series on a different yAxis
Is it possible to have 2 category axis(x -axis) values one with bar and other with line and one measure for both? If possible please let me know how to achieve it.
Thanks
Niki
Multiple Y-axis are possible, but you can only have one X-axis per chart. That said, you can have an X-axis with multiple dimensions on it (e.g. City and State).
Each measure will be plotted (aggregated) according to the dimensions added to the X-axis.
You cannot have different visualisations for the same measure on the same chart (e.g. a column and a line for the same measure), unless you have a chart with 2 Y-axis. Whether this would be a good visualisation of your data is a different matter.
I'm using Core Plot to draw graphs in my app.
I just encountered a problem:
I have dates on the X-Axis and I use a custom labeling policy.
If I only have a few records everything works fine
If I have many records all the labels are near and not useful :-(
So the question is: How can I decide which values display and which not to always have 10 labels, separated one from the other.
Divide the number of points by the number of labels you want and round up. For example, if you have 25 data points and want roughly 10 labels, label every third data point. You'll end up with 9 evenly spaced labels.