altair.FormatConfig

class altair.FormatConfig(normalizedNumberFormat=Undefined, normalizedNumberFormatType=Undefined, numberFormat=Undefined, numberFormatType=Undefined, timeFormat=Undefined, timeFormatType=Undefined, **kwds)

FormatConfig schema wrapper

Parameters:

normalizedNumberFormatstr

If normalizedNumberFormatType is not specified, D3 number format for axis labels, text marks, and tooltips of normalized stacked fields (fields with stack: "normalize" ). For example "s" for SI units. Use D3’s number format pattern.

If config.normalizedNumberFormatType is specified and config.customFormatTypes is true, this value will be passed as format alongside datum.value to the config.numberFormatType function. Default value: %

normalizedNumberFormatTypestr

Custom format type for config.normalizedNumberFormat.

Default value: undefined – This is equilvalent to call D3-format, which is exposed as format in Vega-Expression. Note: You must also set customFormatTypes to true to use this feature.

numberFormatstr

If numberFormatType is not specified, D3 number format for guide labels, text marks, and tooltips of non-normalized fields (fields without stack: "normalize" ). For example "s" for SI units. Use D3’s number format pattern.

If config.numberFormatType is specified and config.customFormatTypes is true, this value will be passed as format alongside datum.value to the config.numberFormatType function.

numberFormatTypestr

Custom format type for config.numberFormat.

Default value: undefined – This is equilvalent to call D3-format, which is exposed as format in Vega-Expression. Note: You must also set customFormatTypes to true to use this feature.

timeFormatstr

Default time format for raw time values (without time units) in text marks, legend labels and header labels.

Default value: "%b %d, %Y" Note: Axes automatically determine the format for each label automatically so this config does not affect axes.

timeFormatTypestr

Custom format type for config.timeFormat.

Default value: undefined – This is equilvalent to call D3-time-format, which is exposed as timeFormat in Vega-Expression. Note: You must also set customFormatTypes to true and there must not be a timeUnit defined to use this feature.

__init__(normalizedNumberFormat=Undefined, normalizedNumberFormatType=Undefined, numberFormat=Undefined, numberFormatType=Undefined, timeFormat=Undefined, timeFormatType=Undefined, **kwds)

Methods

__init__([normalizedNumberFormat, ...])
copy([deep, ignore])	Return a copy of the object
from_dict(dct[, validate, _wrapper_classes])	Construct class from a dictionary representation
from_json(json_string[, validate])	Instantiate the object from a valid JSON string
resolve_references([schema])	Resolve references in the context of this object's schema or root schema.
to_dict([validate, ignore, context])	Return a dictionary representation of the object
to_json([validate, indent, sort_keys, ...])	Emit the JSON representation for this object as a string.
validate(instance[, schema])	Validate the instance against the class schema in the context of the rootschema.
validate_property(name, value[, schema])	Validate a property against property schema in the context of the rootschema