Precision Input Examples and Reference

Default Precision Input

An example of a default precision input without any extra properties.

library(dash)
library(dashDaq)
library(dashHtmlComponents)

app <- Dash$new()

app$layout(htmlDiv(list(
  daqPrecisionInput(id = 'my-precision',
                    label = 'Default',
                    precision = 4,
                    value = 1234),
  htmlDiv(id = 'precision-output')
)))

app$callback(
  output(id = "precision-output", property = "children"),
  params = list(input(id = "my-precision", property = "value")),

  update_output <- function(value) {
    return(sprintf("The current value is %s", value))
  }
)

app$run_server()

Label

Set the label and label position with label and labelPosition.

library(dashDaq)

daqPrecisionInput(
    label = "Label",
    labelPosition = "top",
    precision = 2,
    value = 12
)

Precision

The precision property is mandatory for this component. The precision property
indicates the accuracy of the specified number.

library(dashDaq)

daqPrecisionInput(
    precision = 2,
    value = 125
)

Max and Min

Set the maximum and minimum value of the numeric input with max and min.

library(dashDaq)

daqPrecisionInput(
    precision = 2,
    value = 15,
    max = 20,
    min = 10
)

Size

Set the length (in pixels) of the numeric input size.

library(dashDaq)

daqPrecisionInput(
    size = 120,
    precision = 4,
    value = 245,
)

Disabled

Disable the precision input by setting disabled=TRUE.

library(dashDaq)

daqPrecisionInput(
    disabled = TRUE,
    precision = 4,
    value = 9999,
)

PrecisionInput Properties

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id (character; optional):
The ID used to identify this compnent in Dash callbacks.

value (numeric; optional):
The value of numeric input.

size (numeric; optional):
The size (length) of the numeric input in pixels.

min (numeric; default 0):
The minimum value of the numeric input.

max (numeric; default Number.MAX_SAFE_INTEGER):
The maximum value of the numeric input.

precision (numeric; default 2):
Number of significant figures.

disabled (logical; optional):
If TRUE, numeric input cannot be changed.

theme (named list; default light):
Theme configuration to be set by a ThemeProvider.

label (named list; optional):
Description to be displayed alongside the scientific notation. To
control styling, pass an object with label and style properties.

label is a character | named list with keys:

  • label (character; optional)

  • style (named list; optional)

labelPosition (a value equal to: ‘top’ or ‘bottom’; default 'top'):
Where the numeric input label is positioned.

className (character; optional):
Class to apply to the root component element.

style (named list; optional):
Style to apply to the root component element.

persistence (logical | character | numeric; optional):
Used to allow user interactions in this component to be persisted when
the component - or the page - is refreshed. If persisted is truthy
and hasn’t changed from its previous value, a value that the user
has changed while using the app will keep that change, as long as the
new value also matches what was given originally. Used in
conjunction with persistence_type.

persisted_props (unnamed list of values equal to: ‘value’; default ['value']):
Properties whose user interactions will persist after refreshing the
component or the page. Since only value is allowed this prop can
normally be ignored.

persistence_type (a value equal to: ‘local’, ‘session’ or ‘memory’; default 'local'):
Where persisted user changes will be stored: memory: only kept in
memory, reset on page refresh. local: window.localStorage, data is
kept after the browser quit. session: window.sessionStorage, data is
cleared once the browser quit.