| attchdat | Attach a data frame to the end of another frame |
| -d <data> | name of the source data (data to be attached) |
| -dout <target-data> | name of the target data |
This command attaches another data frame to target data. New data records are added after existing data records in the target data, and the operation assumes that there are existing data records available in the target data. Naturally, the types and lengths of the data frames have to match, which is also checked.
Example: The example duplicates the Boston housing data.
NDA> load boston.dat NDA> copy boston data2 NDA> attchdat -dout data2 -d boston # Now data2 contains duplicated data records