injector: Inject and eavesdrop a continuous variable.
In switchboard: An Agile Widget Engine for Real-Time, Dynamic Visualizations

Description Arguments Value Usage See Also Examples

The injector widget displays a horizontal moving window of data with a slider that injects/modifies characteristics of the data. (see injector_X for a vertical version). The X-axis is time-lagged and the widget keeps track of each point until it reaches the end of the plot. This widget is univariate and only eavesdrops one variable; for a bivariate version use injector_2D. The number of data points in the window can be throttled with delay.

`eavesdrop`	The variable to track.
`minimum`	The minimum value of `eavesdrop`. It defines the plot boundary
`maximum`	The maximum value of `eavesdrop`. It defines the plot boundary
`inject`	String of the variable name to be modified/injected by widgets. For example, if `eavesdrop = i` then `inject = "i"`.
`label`	A small caption/label for the widget.
`size`	A number used to designate the size (magnification) of the widget. The default is set to `1` which is 80 by 80 pixels. For example, setting to `3` will results in a widget 3-times the default size (240 by 240 pixels) and will occupy a grid area of 3 by 3.
`placeOnGrid`	A row by column coordinate (e.g., `c(row-number, column-number)`) of a grid that designates the position to draw the widget on the `switchboard`. Use `showGrid()` to help organize widget placement on dashboard. The default places the first widget in pipe chain to the `c(1, 1)` position, and all following on the same row stacked to the right.
`updates`	The number of times the widget is to be updated (e.g., when it be modified/changed). The default updates the widget 100 times. Increase number for smoother progress bar animation.
`delay`	Pause each update of the switchboard. Default has no delay, values are in seconds (e.g., `delay = 0.01` results in 0.01 second delay with each iteration).
`plotMean`	Display a small switchboard-estimated mean and standard deviation whisker plot on a widget.
`switch`	Display an on/off switch on a widget that controls widget updates. When `TRUE` it will add the switch in the off-state on the switchboard. The user must activate the switch to start the widget. The simulation proceeds even if the switch in in the off-state.

Nothing.

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injector(eavesdrop, minimum = 1, maximum = 100, inject = "",
   label = "", size = 1, placeOnGrid = c(1, 1), updates = 100, delay = 0,
   plotMean = FALSE, switch = FALSE)

Other eavesdroppers: benchmark(), counter_tally(), counter(), eavesdropper_2D(), eavesdropper_X(), eavesdropper(), injector_2D(), injector_X(), number_pair(), number_quartet(), number_trio(), number(), progress_benchmark()

Other injectors: control_slider_Y_pair(), control_slider_Y(), control_slider_pair(), control_slider(), control_switch_pair(), control_switch_trio(), control_switch(), injector_2D(), injector_X()

Other moving windows: eavesdropper_2D(), eavesdropper_X(), eavesdropper(), injector_2D(), injector_X()

## Not run: 
     
     populationMean = 0
     for (i in 1:4000) {
       randomNormal <- rnorm(1, populationMean, 1)
       switchboard(delay = 0.01) %>%
         injector(randomNormal, inject = "populationMean", minimum = -5, maximum = 5)
     }
     switchboard_close()


## End(Not run)