| take | DataFrame.Operations.Subset, DataFrame | 
| takeColumn | DataFrame.Internal.Column | 
| takeLast | DataFrame.Operations.Subset, DataFrame | 
| takeLastColumn | DataFrame.Internal.Column | 
| TColumn | DataFrame.Internal.Column | 
| TextType | DataFrame.IO.CSV | 
| THOMAS | DataFrame.IO.Parquet.Types | 
| TimestampType | DataFrame.IO.Parquet.Types | 
| TimeType | DataFrame.IO.Parquet.Types | 
| TimeUnit | DataFrame.IO.Parquet.Types | 
| TIME_UNIT_UNKNOWN | DataFrame.IO.Parquet.Types | 
| toAny | DataFrame.Internal.Row, DataFrame | 
| toColumnRep | DataFrame.Internal.Column | 
| toDouble | DataFrame.Functions | 
| toDoubleMatrix | DataFrame.Internal.DataFrame, DataFrame | 
| toDoubleVector | DataFrame.Internal.Column | 
| toFloatMatrix | DataFrame.Internal.DataFrame, DataFrame | 
| toFloatVector | DataFrame.Internal.Column | 
| toIntegralType | DataFrame.IO.Parquet.Thrift | 
| toIntMatrix | DataFrame.Internal.DataFrame, DataFrame | 
| toIntVector | DataFrame.Internal.Column | 
| toList | DataFrame.Internal.Column, DataFrame | 
| toMarkdownTable | DataFrame.Internal.DataFrame, DataFrame | 
| toMaybeBool | DataFrame.IO.Parquet.Dictionary | 
| toMaybeDouble | DataFrame.IO.Parquet.Dictionary | 
| toMaybeFloat | DataFrame.IO.Parquet.Dictionary | 
| toMaybeInt32 | DataFrame.IO.Parquet.Dictionary | 
| toMaybeInt64 | DataFrame.IO.Parquet.Dictionary | 
| toMaybeText | DataFrame.IO.Parquet.Dictionary | 
| toMaybeUTCTime | DataFrame.IO.Parquet.Dictionary | 
| toPct2dp | DataFrame.Operations.Statistics | 
| toRowList | DataFrame.Internal.Row, DataFrame | 
| toRowVector | DataFrame.Internal.Row, DataFrame | 
| totalByteSize | DataFrame.IO.Parquet.Thrift | 
| totalCompressedSize | DataFrame.IO.Parquet.Thrift | 
| totalRows | DataFrame.Lazy.IO.CSV | 
| toTType | DataFrame.IO.Parquet.Thrift | 
| toVector | DataFrame.Internal.Column, DataFrame | 
| TType | DataFrame.IO.Parquet.Thrift | 
| TypedColumn | DataFrame.Internal.Column | 
| TypeErrorContext | DataFrame.Errors, DataFrame | 
| typeFromString | DataFrame.Functions | 
| typeInferenceSampleSize | DataFrame.IO.CSV | 
| typeLength | DataFrame.IO.Parquet.Thrift | 
| typeMismatchError | DataFrame.Errors, DataFrame | 
| TypeMismatchException | DataFrame.Errors, DataFrame | 
| typeOfColumn | DataFrame.Operations.Core | 
| TypeSpec | DataFrame.IO.CSV, DataFrame | 
| typeSpec | DataFrame.IO.CSV, DataFrame | 
| TYPE_ORDER | DataFrame.IO.Parquet.Types |