Struct SpssMetadata 

pub struct SpssMetadata {

    pub file_label: String,
    pub file_encoding: String,
    pub compression: Compression,
    pub creation_time: String,
    pub notes: Vec<String>,
    pub number_rows: Option<i64>,
    pub number_columns: usize,
    pub file_format: String,
    pub variable_names: Vec<String>,
    pub variable_labels: IndexMap<String, String>,
    pub variable_formats: IndexMap<String, String>,
    pub arrow_data_types: IndexMap<String, String>,
    pub variable_value_labels: IndexMap<String, IndexMap<Value, String>>,
    pub variable_alignments: IndexMap<String, Alignment>,
    pub variable_storage_widths: IndexMap<String, usize>,
    pub variable_display_widths: IndexMap<String, u32>,
    pub variable_measures: IndexMap<String, Measure>,
    pub variable_missing_values: IndexMap<String, Vec<MissingSpec>>,
    pub mr_sets: IndexMap<String, MrSet>,
    pub variable_roles: IndexMap<String, Role>,
    pub variable_attributes: IndexMap<String, IndexMap<String, Vec<String>>>,
    pub weight_variable: Option<String>,
}

The complete metadata for an SPSS file.

Fields

file_label: String

file_encoding: String

compression: Compression

creation_time: String

notes: Vec<String>

number_rows: Option<i64>

number_columns: usize

file_format: String

variable_names: Vec<String>

variable_labels: IndexMap<String, String>

variable_formats: IndexMap<String, String>

arrow_data_types: IndexMap<String, String>

variable_value_labels: IndexMap<String, IndexMap<Value, String>>

variable_alignments: IndexMap<String, Alignment>

variable_storage_widths: IndexMap<String, usize>

variable_display_widths: IndexMap<String, u32>

variable_measures: IndexMap<String, Measure>

variable_missing_values: IndexMap<String, Vec<MissingSpec>>

mr_sets: IndexMap<String, MrSet>

variable_roles: IndexMap<String, Role>

variable_attributes: IndexMap<String, IndexMap<String, Vec<String>>>

weight_variable: Option<String>

Implementations

impl SpssMetadata

pub fn label(&self, name: &str) -> Option<&str>

Get a variable label by name.

pub fn value_labels(&self, name: &str) -> Option<&IndexMap<Value, String>>

Get value labels for a variable.

pub fn format(&self, name: &str) -> Option<&str>

Get the SPSS format string for a variable (e.g., “F8.2”, “A50”).

pub fn measure(&self, name: &str) -> Option<Measure>

Get the measurement level for a variable.

pub fn role(&self, name: &str) -> Option<Role>

Get the role for a variable.

pub fn attributes( &self, var_name: &str, ) -> Option<&IndexMap<String, Vec<String>>>

Get all custom attributes for a variable.

pub fn attribute(&self, var_name: &str, attr_name: &str) -> Option<&Vec<String>>

Get a specific custom attribute’s values for a variable.

pub fn from_arrow_schema(schema: &Schema) -> Self

Infer metadata from an Arrow schema (for write_sav without prior read metadata).

Trait Implementations

impl Clone for SpssMetadata

fn clone(&self) -> SpssMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpssMetadata

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

Formats the value using the given formatter.

impl Default for SpssMetadata

fn default() -> Self

Returns the “default value” for a type.