To assure time continuity, I convert NSDates of a time series into time interval, and use for scatterplot or bar chart. The problem now is that Saturdays and Sundays are also included in X axis scale.
I wonder if it is possible to excludes weekends from the axis scale, making Monday date a following day of Friday, while still sticking to the use of time interval.
I could use custom labeling, but my time series does not include all weekdays, and I still want all weekdays to be shown even if not include in the time series.
Thanks
Core Plot plot ranges always cover a continuous range of values. To cut out the weekends, you'll need to define a mapping between dates and the linear time scale of the plot that excludes the weekend dates. The mapping should be defined both ways (date to plot value and plot value to date) so you can label the axis.
Related
I am using Highcharts with datetime type xAxis and irregular timestamped data.
Is there any possibility to enforce range on the axis? Currently, even if I set min and max, based on data bounds, Highchart tends to determine x axis range based on some internal algorithm, showing i.e. more than 6 weeks, even if data is limited to one month only. This effects in "blank margins".
My weather station collects every 15 minutes the current temperature. With Highcharts I created a chart to display the last 24h. So I pass all the 96 quarter-hourly values to the chart. This looks not so pretty. Instead I would just display the average of each hour.
Is it possible to display the average value for each hour based on a series of quarter-hourly values and leaving the calculation to Highcharts and not doing it myself?
You can use highstock which allows to use datagrouping.
My case: Plot a stockchart with stock data for 5 days without weekends displaying, each day should have equal space even though data can be irregular.
What i need to do is plot an xAxis with static intervals of one day, however i cant display weekends and the data can be very irregular between the days. I've tried tinkering with tickInterval, tickPositioner but so far no luck.
I can hide weekends with:
ordinal: true,
My current fiddle:
http://jsfiddle.net/svedino/h9448fk0/1/
Setting the ordinal to false gives me correct interval but with the weekends included.
An example of this kind of graph seems to be working can be found here:
https://www.avanza.se/aktier/om-aktien.html/229675/jays
im using highcharts for reports the x-axis
type:datetime and tickinterval:23 * 24 * 3600 * 1000
, i have another dropdown where in
i can select the CurrentYear,Past 30 days,Previous Month, Current Month,Past 7 days, Previous week , CurrentWeek report the data comes
according to the selected value for CurrentYear the x-axis shows values jul'13,Aug'13,Sep'13...Mar'14 which is right since the tickinterval
is 1 month , but as soon as i select the one week report / current week report x-axis shows no point on it..i want atleast two point on
the x-axis. i thought of using min and max for the same but can't use since the values of min and max will change according to the
weeks.so is there any logic that will make my x-axis value constant to say 6 values or 5values of dates
In general, instead of setting tickInterval, try to set tickPixelInterval - Highcharts will try to fix tick positions to fit pixel interval between them. It won't be exactly the same distance as you set in tickPixelInterval but something really close.
You have also another solution, when you set new data from dropdown you can also call: chart.xAxis.update({ tickInterval: newvalue }) so for each dropdown value, you can set new interval, which workaround your issue.
Start date in irregular series is not same with date which is shown on mouse-over tip.
Also, you can check this on HC demo page for Winter serie start date: http://www.highcharts.com/demo/spline-irregular-time
How can I fix this, so both date point to regular one.
TY
There is no error. XAxis labels is calculated for only to fit the screen. There may be no point on label. For this example, time is fragmented per-14-days. If time is too long, may be fragmented more than 14, OR less than 14.
XAxis labels not represent points. It only shows timeInterval.