Index - I
| IdentityCase | DataFrame.Typed.Generic |
| If | |
| 1 (Type/Class) | DataFrame.Internal.Types |
| 2 (Data Constructor) | DataFrame.Internal.Expression |
| ifoldrColumn | DataFrame.Internal.Column |
| ifThenElse | DataFrame.Operators |
| imapColumn | DataFrame.Internal.Column |
| Impute | DataFrame.Typed.Schema |
| InnerJoinSchema | DataFrame.Typed.Schema |
| insertAt | DataFrame.Internal.DataFrame |
| insertColumn | DataFrame.Internal.DataFrame, DataFrame.Core |
| IntBuilder | DataFrame.Internal.ColumnBuilder |
| IntegralIf | DataFrame.Internal.Types |
| IntegralTypes | DataFrame.Internal.Types |
| InternalException | DataFrame.Errors |
| interpret | DataFrame.Internal.Interpreter |
| interpretAggregation | DataFrame.Internal.Interpreter |
| IsElem | DataFrame.Typed.Schema |
| isNumeric | DataFrame.Internal.Column, DataFrame.Core |
| isPackedText | DataFrame.Internal.Column |
| IsRealType | DataFrame.Typed.Schema |
| isUtf8Boundary | DataFrame.Internal.Utf8 |
| isValidUtf8Slice | DataFrame.Internal.Utf8 |