Chart::Plotly::Trace::Parcats - Parallel categories diagram for multidimensional categorical data.


version 0.041


 use Chart::Plotly;
 use Chart::Plotly::Trace::Parcats;
 use Chart::Plotly::Plot;
 # Example from
 my $trace = Chart::Plotly::Trace::Parcats->new( bundlecolors => 1,
                                                 dimensions   => [
                                                            { label  => 'One',
                                                              values => [ (1) x 2, 2, 1, 2, (1) x 2, 2, 1 ]
                                                            { label  => 'Two',
                                                              values => [ 'A', 'B', 'A', 'B', ('C') x 2, 'A', 'B', 'C' ]
                                                            { label  => 'Three',
                                                              values => [ (11) x 9 ]
                                                 domain => { x => [ 0.125, 0.625 ],
                                                             y => [ 0.25,  0.75 ]
                                                 line => { color => [ (0) x 2, (1) x 2, 0, 1, (0) x 3 ] }
 my $plot = Chart::Plotly::Plot->new( traces => [$trace],
                                      layout => { height => 602,
                                                  margin => { b => 40,
                                                              l => 40,
                                                              r => 40,
                                                              t => 50
                                                  width => 592


Parallel categories diagram for multidimensional categorical data.

Screenshot of the above example:

Screenshot of the above example

This file has been autogenerated from the official plotly.js source.

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Full reference:


This is an unofficial Plotly Perl module. Currently I'm not affiliated in any way with Plotly. But I think plotly.js is a great library and I want to use it with perl.



Serialize the trace to JSON. This method should be called only by JSON serializer.


Trace type.


  • arrangement

    Sets the drag interaction mode for categories and dimensions. If `perpendicular`, the categories can only move along a line perpendicular to the paths. If `freeform`, the categories can freely move on the plane. If `fixed`, the categories and dimensions are stationary.

  • bundlecolors

    Sort paths so that like colors are bundled together within each category.

  • counts

    The number of observations represented by each state. Defaults to 1 so that each state represents one observation

  • countssrc

    Sets the source reference on for counts .

  • dimensions

  • domain

  • hoverinfo

    Determines which trace information appear on hover. If `none` or `skip` are set, no information is displayed upon hovering. But, if `none` is set, click and hover events are still fired.

  • hoveron

    Sets the hover interaction mode for the parcats diagram. If `category`, hover interaction take place per category. If `color`, hover interactions take place per color per category. If `dimension`, hover interactions take place across all categories per dimension.

  • hovertemplate

    Template string used for rendering the information that appear on hover box. Note that this will override `hoverinfo`. Variables are inserted using %{variable}, for example "y: %{y}". Numbers are formatted using d3-format's syntax %{variable:d3-format}, for example "Price: %{y:$.2f}". for details on the formatting syntax. Dates are formatted using d3-time-format's syntax %{variable|d3-time-format}, for example "Day: %{2019-01-01|%A}". for details on the date formatting syntax. The variables available in `hovertemplate` are the ones emitted as event data described at this link Additionally, every attributes that can be specified per-point (the ones that are `arrayOk: true`) are available. variables `count`, `probability`, `category`, `categorycount`, `colorcount` and `bandcolorcount`. Anything contained in tag `<extra>` is displayed in the secondary box, for example "<extra>{}</extra>". To hide the secondary box completely, use an empty tag `<extra></extra>`.

  • labelfont

  • line

  • pmeta

    Assigns extra meta information associated with this trace that can be used in various text attributes. Attributes such as trace `name`, graph, axis and colorbar `title.text`, annotation `text` `rangeselector`, `updatemenues` and `sliders` `label` text all support `meta`. To access the trace `meta` values in an attribute in the same trace, simply use `%{meta[i]}` where `i` is the index or key of the `meta` item in question. To access trace `meta` in layout attributes, use `%{data[n[.meta[i]}` where `i` is the index or key of the `meta` and `n` is the trace index.

  • metasrc

    Sets the source reference on for meta .

  • name

    Sets the trace name. The trace name appear as the legend item and on hover.

  • sortpaths

    Sets the path sorting algorithm. If `forward`, sort paths based on dimension categories from left to right. If `backward`, sort paths based on dimensions categories from right to left.

  • stream

  • tickfont

  • transforms

  • uid

    Assign an id to this trace, Use this to provide object constancy between traces during animations and transitions.

  • uirevision

    Controls persistence of some user-driven changes to the trace: `constraintrange` in `parcoords` traces, as well as some `editable: true` modifications such as `name` and `colorbar.title`. Defaults to `layout.uirevision`. Note that other user-driven trace attribute changes are controlled by `layout` attributes: `trace.visible` is controlled by `layout.legend.uirevision`, `selectedpoints` is controlled by `layout.selectionrevision`, and `colorbar.(x|y)` (accessible with `config: {editable: true}`) is controlled by `layout.editrevision`. Trace changes are tracked by `uid`, which only falls back on trace index if no `uid` is provided. So if your app can add/remove traces before the end of the `data` array, such that the same trace has a different index, you can still preserve user-driven changes if you give each trace a `uid` that stays with it as it moves.

  • visible

    Determines whether or not this trace is visible. If *legendonly*, the trace is not drawn, but can appear as a legend item (provided that the legend itself is visible).


Pablo Rodríguez González <>


This software is Copyright (c) 2020 by Pablo Rodríguez González.

This is free software, licensed under:

  The MIT (X11) License