EpivizChartMgr-class {epivizr} | R Documentation

## Class providing chart manager for epiviz app

### Description

Class providing chart manager for epiviz app

### Methods

`add_chart(chart_object, send_request = TRUE)`

  Add a chart to the chart manager.

  chart_object

    an object of class `EpivizChart`

  send_request

    send request to app through websocket

`get_chart_colors(chart_object_or_id)`

  List colors used in a specific chart object.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager

`get_chart_settings(chart_object_or_id)`

  List chart settings for a specific chart object.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager

`is_server_closed()`

  Returns `TRUE` if underlying server is closed. See `is_closed` method in class `EpivizServer`.

`list_chart_type_colors(chart_type)`

  List colors currently used in given chart type

`list_chart_type_settings(chart_type)`

  List available settings for a specific chart type.

  chart_type

    the name for a chart type in R (e.g., 'BlocksTrack', 'StackedLineTrack')

`list_chart_types(col_width = 80)`

  List charts types registered in epivizr with their default settings and colors. Returns a `data.frame` listing available chart types and a summary of the settings that can be modified.

  col_width

    Maximum length of settings list displayed.

`list_charts()`

  Return `data.frame` describing charts loaded by chart manager

`num_charts()`

  Return the number of charts currently loaded through manager.

`plot(measurement_object, settings = NULL, colors = NULL, send_request = TRUE)`

  Visualize data in an `EpivizData` object using its default chart type. The method `get_default_chart_type` in class `EpivizData` is used to determine which chart type is used.

  measurement_object

    an object of class `EpivizData`

  settings

    list of settings to use in chart (uses default chart settings if NULL)

  colors

    character vector of HEX colors to use in chart (uses default chart colors if NULL)

`print_chart(chart_object_or_id, file_name = NULL, file_type = c("pdf", "png"))`

  Print specific chart to file.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager.

  file_name

    Name of file to print to.

  file_type

    Type of file to print. One of `pdf` or `png`.

`print_chart_info(chart_object_or_id)`

  Print settings and colors used in a specific chart object.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager

`print_chart_type_info(chart_type)`

  Print settings and color information for a given chart type

  chart_type

    the name for a chart type in R (e.g., 'BlocksTrack', 'StackedLineTrack')

`register_chart_type( chart_type, js_chart_type = paste0("epiviz.plugins.charts.", chart_type), js_chart_settings = list(), js_chart_colors = character() )`

  Register a chart type name to a JavaScript chart type in the epiviz app.

  chart_type

    the name to use for chart type in R (e.g., 'BlocksTrack')

  js_chart_type

    the full JavaScript class name of the corresponding chart type (e.g. 'epiviz.plugins.charts.BlocksTrack'). If missing it is taken from the `chart_type` argument

  js_chart_settings

    custom settings that can be applied to this chart type in JS.

  js_chart_colors

    default color palette applied to this chart type in JS.

`revisualize(chart_type, chart, ...)`

  Revisualize uses data the given chart and replots it in the given chart type. The argument `chart` must be non-`NULL`.

  chart_type

    a chart type registered using the `register_chart_type` method

  chart

    a chart that includes measurements to be used in a new chart

`rm_all_charts()`

  Remove all charts loaded by chart manager.

`rm_chart(chart_object_or_id)`

  Remove chart from chart manager.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager

`set_chart_settings(chart_object_or_id, settings = NULL, colors = NULL)`

  Apply custom chart settings or colors to a chart object.

  chart_object_or_id

    An object of class `EpivizChart` or a string indicating the chart's id assigned by chart manager

  settings

    a list of settings to apply to the chart

  colors

    a list of (HEX code) colors to use in the chart

`visualize( chart_type, measurements = NULL, datasource = NULL, settings = NULL, colors = NULL, send_request = TRUE, ... )`

  Visualize data use the given chart type. One of arguments `measurements` or `datasource` must be non-`NULL`. If `measurements` is `NULL`, the `get_measurements` method in class `EpivizData` is used to decide which measurements are used in the chart

  chart_type

    a chart type registered using the `register_chart_type` method

  measurements

    a list of `EpivizMeasurement` objects describing measurements to include in the chart

  datasource

    an object of class `EpivizData`, all available measurements from datasource are used as appropriate

[Package epivizr version 2.17.1 Index]