| Name | Type | Description |
| inrange | verb | (low, high) inrange data |
| isbalanced | verb | pair isbalanced string |
| isboolean | verb | data is all 0 or 1 |
| isboxed | verb | is boxed |
| ischaracter | verb | data is character |
| iscomplex | verb | data is complex |
| iscounter | verb | data is non-negative integer (counting number) |
| isdate | verb | is date (as yyyy mm dd) |
| isinteger | verb | data is all integer |
| ismatrix | verb | data is a matrix |
| isnumeric | verb | data is numeric |
| isreal | verb | data is all real |
| isscalar | verb | data is a scalar |
| isvector | verb | data is a vector |