Struct agnes::store::DataStore
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pub struct DataStore {
pub fields: Vec<DsField>,
pub field_map: HashMap<FieldIdent, usize>,
// some fields omitted
}Data storage underlying a dataframe. Data is retrievable both by index (of the fields vector) and by field name.
Fields
fields: Vec<DsField>
List of fields within the data store
field_map: HashMap<FieldIdent, usize>
Map of field names to index of the fields vector
Methods
impl DataStore[src]
pub fn empty() -> DataStore[src]
Generate and return an empty data store
pub fn insert(&mut self, field: SrcField, value_str: String) -> Result<()>[src]
Insert a value (provided in unparsed string form) for specified field
pub fn get_unsigned_field(&self, ident: &FieldIdent) -> Option<&MaskedData<u64>>[src]
Retrieve an unsigned integer field
pub fn get_signed_field(&self, ident: &FieldIdent) -> Option<&MaskedData<i64>>[src]
Retrieve a signed integer field
pub fn get_text_field(&self, ident: &FieldIdent) -> Option<&MaskedData<String>>[src]
Retrieve a string field
pub fn get_boolean_field(&self, ident: &FieldIdent) -> Option<&MaskedData<bool>>[src]
Retrieve a boolean field
pub fn get_float_field(&self, ident: &FieldIdent) -> Option<&MaskedData<f64>>[src]
Retrieve a floating-point field
pub fn get_field_data(&self, ident: &FieldIdent) -> Option<FieldData>[src]
Get all the data for a field, returned within the FieldData common data enum. Returns
None if the specified FieldIdent object does not exist.
pub fn get_field_info(&self, ident: &FieldIdent) -> Option<&DsField>[src]
Get the field information struct for a given field name
pub fn fields(&self) -> Vec<&DsField>[src]
Get the list of field information structs for this data store
pub fn fieldnames(&self) -> Vec<String>[src]
Get the field names in this data store
pub fn is_homogeneous(&self) -> bool[src]
Check if datastore is "homogenous": all columns (regardless of field type) are the same length
pub fn nrows(&self) -> usize[src]
Retrieve number of rows for this data store
Trait Implementations
impl Debug for DataStore[src]
fn fmt(&self, __arg_0: &mut Formatter) -> Result[src]
Formats the value using the given formatter. Read more