# Data Attributes

These are the available functions for data attributes. See each function's help topic in the TERR Language Reference for more information.

Function name | Title description
--- | ---
`.col` | Column and Row Identification in a Matrix
`.row` | Column and Row Identification in a Matrix
`as.name` | Names and Symbols
`as.null` | The Null Object
`as.null.default` | The Null Object
`as.symbol` | Names and Symbols
`attr` | Attribute of an Object
`attributes` | All Attributes of an Object
`col` | Column and Row Identification in a Matrix
`dim` | Dim Attribute of an Object
`dim<-` | Dim Attribute of an Object
`dimnames` | Dimnames Attribute of an Object
`dimnames.data.frame` | Dimnames Attribute of an Object
`is.name` | Names and Symbols
`is.null` | The Null Object
`is.symbol` | Names and Symbols
`length` | Length of a Vector or List
`length.POSIXlt` | Length of a Vector or List
`levels` | Get Or Set Levels Attribute
`mode` | Data Mode of the Values in a Vector
`name` | Names and Symbols
`names` | Names Attribute of an Object
`names.POSIXlt` | Names Attribute of an Object
`names<-` | Names Attribute of an Object
`names<-.POSIXlt` | Names Attribute of an Object
`nlevels` | Number of Levels of a factor Object
`NULL` | The Null Object
`row` | Column and Row Identification in a Matrix
`storage.mode` | Data Mode of the Values in a Vector
`structure` | An Object with Given Attributes
`type` | The Type of an Object
`typeof` | The Type of an Object