Should remove breaks for OHLC, Candlestick

The code to reproduce is based on simple-candlestick-chart-example . The difference is:

11th, 12th are not existed in the dataset (simply because they’re weekdays/non-trading days), but candlesticks in the chart should be continued, i.e.: the breaks of 11th, 12th should be removed like what highcharts do.

This behaviour should be the default one for OHLC and Candlestick charts, otherwise it will become terrible for real world dataset.

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https://codepen.io/mckelvin/pen/ygwMQz is my workaround by using tickvals and ticktext. But there’s another problem: nticks doesn’t work when tickmode=array as mentioned in docs, there will be too many tick labels if there’re too many ticks.

[santosjorge]

In my opinion - I think it is an overkill to expect Plotly having to retrieve holidays/trading sessions for all instruments. You will also have to handle scenarios where there is multiple calendars (ie a GBP swap).

Most data providers already take into account non-trading days/market sessions into account. That means the data has already been cleaned/adjusted.

The only thing required would be a layout parameter to create an axis that will omit the dates for which no values exist in the timeseries.

[etpinard]

In v1.53.0, users will be able to remove non-working days and non-working hours using the new axis.breaks API for type: 'date' cartesian axes.

Some examples:

• breaks using pattern on date axis: https://codepen.io/etpinard/pen/PoqRNoL
• breaks using values on date axis: https://codepen.io/etpinard/pen/OJVvNJG

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I’ll leave this issue open as some folks here appear to prefer the “date as categories” approach - which is another planned feature of ours.