In Plotly.js I am trying to allow users to see two (related) values for positions on the x axis. (Think if I'm doing dates I want it to say "Tuesday" on the lower axis and June 28th 2016 on a linked axis) Linking the axes would preferably preserve the relation between values when scrolling or zooming.
I had a temporary solution in place, where I would change the values from floats (as that was what we were using) to strings with a break character intended to separate the values (which allowed viewing both values at once albeit on one axis), however when tested with floats that were not equally spaced the slope would change visually, which is not desired. Another solution I have tried was to have the ticks be their float values, and then change their values after they were plotted using the "tickvals" and "ticktext" attributes, but I was unable to then hide some tick text while keeping others view-able on the x axis (and with 80 values it became quite busy and unreadable) There is the solution of hiding all of these tick values, but I was hoping there would be a solution where I could see some of them.
I created an example of the problems I am having in jsbin, so I hope it is kosher to link to that. https://jsbin.com/buwuyid/1/edit?html,output (and also hope the link works.)
There was a similar question asked previously, In plotly, how do I create a linked X axis? however that was a year ago and using python, and I was hoping that an implementation that I cannot find has been found, or a solution to one of the other problems I have found could be provided.
Thank you for any help you can provide, and if I can include any more information to help find a solution, please ask.
Related
I'm trying to find a way to dynamically scale a chart's y-axis so the values are shown in single digits, with a exponential denotation at the top, effectively changing this:
To this:
Note, this works automatically in e.g. Matlab/Matplotlib/etc., but I'm struggling to find a solution with the web plotting frameworks (maybe my search language is wrong)... I know D3.js is not a charting library, but I'd be open to a solution that works with the frontend DC.js or the backend D3.js
Edit based on #Gordon's answer below, I get the following graph using this
chart.yAxis().tickFormat(d3.format('.1e'));
Is it somehow possible to move all of the e+6 to the top? Or do I need to write a custom scaling function and insert a separate text box myself?
In dc.js, the axes are straight from d3-axis.
Access them using chart.xAxis() and chart.yAxis(), and to reduce confusion, do this in a separate statement from the rest of your chart initialization.
You can use axis.tickFormat to control how the tick text is formatted.
You can use d3.format to do automatic formatting. It seems like exponent or SI notation might suit what you're doing, although it's not exactly the same as having the exponent in a separate text element like in your screenshot.
Putting it together, this is pretty close
chart.yAxis().tickFormat(d3.format('.1e'))
The tick formatting question comes up a lot. I wonder where we could put this information so that people don't have to ask.
I have some date each has plus or minus value (for example assets or
liabilities)
So at first I integrated nested piechart by amchart
However it has some weak points, you can't get the defference of assets and liabilities at a glance
So next idea is to use like this,discussed here
However I cant find the good sample for amchart4.
Is there any good sample or close sample???
you can do something like this with d3pie chart(see attached image). This is the site: http://d3pie.org/website/examples/donut.html
Just set the stroke to 1 and the fill to white for example. The rest of the stuff I guess is some Math, and you should manipulate the DOM to change those.
The pie chart you want to do, beside looking cool, doesn't apply to this scenario/calculation, especially the percentages are misleading (total being the sum of absolute values of all numbers).
Pie chart is suitable for visualization of all items from the same category. For example, your spending for the month:
which includes Utilities, Transportation, Groceries, etc.
Would a ColumnSeries make more sense in this case?
demo: http://jsfiddle.net/davidliang2008/tna84zer/
I'm trying to build a box plot representing stats of a lot of data(x-time, y-time) The idea is to use d3.extent() to get the domain and then feed it to timeScale to get ticks in nicely chosen intervals. Then I calculate stats for data points between the ticks. Example below:
The approach works well most of the time. Except for the 1st day of the month which creates an additional tick in an uneven spacing ( see above "Wed 31, June" ). I'm currently calculating bar widths and positions manually assuming that the ticks are spaced evenly so the whole chart gets broken.
The data can span any range of time from a week to couple years, so dynamic ticks are required.
Any ideas how to remove the additional tick or make all the ticks spread evenly?
EDIT. Not sure if removing the tick is going to do the trick... probably even spacing is more important here. I looked up other people's questions about similar problems but I'm still confused how to solve my problem.
I've just started using D3 so forgive me if the question is trivial. I'll be happy if you just point me in the right direction.
I was developing a solution for another question here on Stack Overflow (see Highcharts : selection) that has some simple slider elements (using input type="range") to change the categories shown in a column chart. Whenever the user changes the range in either slider element, the chart is redrawn using setExtremes().
I noticed that, in some instances, some of the x-axis labels disappeared, even when I moved the sliders back to their original positions. I've tinkered with a number of x-axis settings, including minPadding, startOnTick, and tickInterval, and none of them seem to solve "The Case of the Missing Labels."
The first screenshot below shows the chart when it's first loaded. All of the x-axis labels are present.
The second screenshot below shows the chart when I change one of the sliders. Some of the x-axis labels are now missing. It looks like they're being staggered.
Here's where the plot thickens: if I adjust the sliders to some other values, all of the labels come back:
Here's the fiddle I developed so you can see a live example of this behavior: https://jsfiddle.net/brightmatrix/uvat8u05/
I'm curious to know why this is happening, and what settings I could use to ensure that all x-axis labels are shown, regardless of what values the user chooses in the sliders.
Thank you very much!
Update: The responses from both Max Uppenkamp and Grzegorz Blachliński are valid and helpful solutions. What I also discovered by chance was that explicitly setting the slider values to integers using parseInt() solved this issue as well. It also helps in comparing both values to make sure a user doesn't choose an end date that is earlier than the start date.
This seems to be intended behavior of Highcharts, however inconsistent it may be.
According to this this should be fixed in current versions of Highcharts, but you might as well try this tick formatter solution.
Edit: If the above doesn't work for you, you might be able to solve the issue by rotating your labels:
http://www.highcharts.com/demo/column-rotated-labels/grid
I'm using n3-chart/line-chart (https://github.com/n3-charts/line-chart) in my angular project.
I'm wondering if there is any way of displaying thresholds in the chart? Ideally this could be done by enabling the grid option, and set a color for the grid on certain y-axis values. However, I haven't found any information if that is possible or not.
The only work around I could think of is to create a "threshold series" that only has two measurements, one for the min x value and one for the max x value. The chart in this codepen example demonstrates this: http://codepen.io/ulrikl/pen/rOXNdd
So, my question is: Is this the only way of achieving thresholds?
n3-charts creator here, symbols are now supported so take a look at http://n3-charts.github.io/line-chart/#/docs, jump to the Symbols section and you'll be all set, hopefully !