Struct TextStats 

pub struct TextStats {
    pub min_length: usize,
    pub max_length: usize,
    pub avg_length: f64,
    pub most_frequent: Option<Vec<FrequencyItem>>,
    pub least_frequent: Option<Vec<FrequencyItem>>,
}

Statistics for text/string columns.

Every length here is a count of Unicode scalar values, not UTF-8 bytes and not grapheme clusters. ASCII text is unaffected by that distinction; a combining sequence counts each scalar, so the decomposed and precomposed spellings of the same word report different lengths. The text_units module carries the reasoning.

Fields

min_length: usize

Shortest value, in Unicode scalar values.

max_length: usize

Longest value, in Unicode scalar values.

avg_length: f64

Mean length in Unicode scalar values. A mean, so it rounds at the statistics precision rather than the percentage one.

most_frequent: Option<Vec<FrequencyItem>>

least_frequent: Option<Vec<FrequencyItem>>

Implementations

impl TextStats

pub fn empty() -> Self

pub fn from_lengths( min_length: usize, max_length: usize, avg_length: f64, ) -> Self

Trait Implementations

impl Clone for TextStats

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TextStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TextStats

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for TextStats

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl Serialize for TextStats

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.