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Returns TRUE (1) if the vector specified by name in argument 1 exists AND is nonzero. If argument 2 is set to 'SearchCurrent', the current group as well as the local and global groups will be searched for the vector, otherwise only the local and global groups will be searched. See Groups for an explanation of groups.
| Number | Type | Compulsory | Default | Description |
|---|---|---|---|---|
|
1 |
string |
Yes |
|
Vector name |
|
2 |
string |
No |
<<empty>> |
Option |
Return type: real
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