csv

Apr 24, 2026

Changes in this version

+ func DetectColumnType(data [][]string, colIndex int) string

+ func GetOriginalHeaders(content string, format types.CSVFormat) []string

+ type CombineResult struct

+ CategoricalColumns map[string][]string

+ ColumnTypes map[string]string

+ Columns int

+ Data [][]string

+ Headers []string

+ NumericTargetData map[string][]float64

+ RowNames []string

+ Rows int

+ func CombineColumns(csvData *types.CSVData, categoricalData map[string][]string, ...) *CombineResult

Nov 9, 2025

Changes in this version

type Options

+ TargetCols []string

Aug 26, 2025

Changes in this version

+ func ConvertToPCAOutputDataWithMetadata(result *types.PCAResult, data *Data, includeMetrics bool, ...) *types.PCAOutputData

+ type ExportMetadata struct

+ Description string

+ InputFilename string

+ Tags []string

Aug 16, 2025

Changes in this version

+ const MaxFieldLength

+ const MaxFileSize

+ func ConvertToPCAOutputData(result *types.PCAResult, data *Data, includeMetrics bool, ...) *types.PCAOutputData

type Data

+ func (d *Data) GetMissingValueInfo(selectedColumns []int) *types.MissingValueInfo

Aug 13, 2025

Changes in this version

+ func AnalyzeMissingValues(data *Data) map[string]interface

+ func Save(w io.Writer, data *Data, opts Options) error

+ func SaveFile(filename string, data *Data, opts Options) error

+ func SaveMatrix(filename string, matrix types.Matrix, headers []string, rowNames []string, ...) error

+ func ToNumericMatrix(stringData [][]string, nullValues []string) (types.Matrix, [][]bool, error)

+ func ToStringMatrix(matrix types.Matrix, precision int) [][]string

+ func ValidateStructure(data *Data) error

+ type CSVWritable interface

+ WriteHeaders func(w io.Writer, opts Options) error

+ WriteRow func(w io.Writer, index int, opts Options) error

+ type ColumnStatistics struct

+ DataType string

+ HasZeroVariance bool

+ Index int

+ Max float64

+ Mean float64

+ Min float64

+ Missing int

+ MissingPercent float64

+ Name string

+ NonMissing int

+ StdDev float64

+ UniqueValues int

+ type Data struct

+ CategoricalColumns map[string][]string

+ Columns int

+ Headers []string

+ Matrix types.Matrix

+ MissingMask [][]bool

+ NumericTargetColumns map[string][]float64

+ RowNames []string

+ Rows int

+ StringData [][]string

+ func Parse(r io.Reader, opts Options) (*Data, error)

+ func ParseFile(filename string, opts Options) (*Data, error)

+ type DataProvider interface

+ GetDimensions func() (rows, cols int)

+ GetHeaders func() []string

+ GetRowNames func() []string

+ HasNumericData func() bool

+ HasStringData func() bool

+ type Options struct

+ Columns []int

+ DecimalSeparator rune

+ Delimiter rune

+ FloatFormat byte

+ HasHeaders bool

+ HasRowNames bool

+ MaxRows int

+ NullValues []string

+ ParseMode ParseMode

+ Precision int

+ SkipRows int

+ StreamingMode bool

+ TargetSuffix string

+ func DefaultOptions() Options

+ func EuropeanOptions() Options

+ func TabDelimitedOptions() Options

+ type ParseMode int

+ const ParseMixed

+ const ParseMixedWithTargets

+ const ParseNumeric

+ const ParseString

+ type Reader struct

+ func NewReader(opts Options) *Reader

+ func (r *Reader) Read(input io.Reader) (*Data, error)

+ func (r *Reader) ReadFile(filename string) (*Data, error)

+ type ValidationResult struct

+ ColumnStats []ColumnStatistics

+ Errors []string

+ Valid bool

+ Warnings []string

+ func ValidateFile(filename string, opts Options) (*ValidationResult, error)

+ type Validator struct

+ func NewValidator(opts Options) *Validator

+ func (v *Validator) Validate(data *Data) *ValidationResult

+ type Writer struct

+ func NewWriter(opts Options) *Writer

+ func (w *Writer) Write(output io.Writer, data *Data) error

+ func (w *Writer) WriteFile(filename string, data *Data) error

+ func (w *Writer) WriteMatrix(output io.Writer, matrix types.Matrix, headers []string, rowNames []string) error

+ func (w *Writer) WriteMatrixFile(filename string, matrix types.Matrix, headers []string, rowNames []string) error