EXPFLD Process
To access this process:
-
Data ribbon >> Data Tools >> Tables >> Expand File.
- Enter "EXPFLD" into the Command Line and press <ENTER>.
See this process in the Command Table.
Process Overview
Copy a file, while expanding the number of records so that a record is output for given increments of a start field until an end field value is reached.
A typical use is where there are properties defined over a range of sample numbers, and these are to be combined with other data entered for each sample. For example, suppose the file contains the following fields:-
BHID FROMNO TONO DENSITY
where the DENSITY is defined for the range of sample numbers in FROMNO and TONO. EXPFLD could be used to expand this into a new file containing the fields:-
BHID Sample DENSITY
This file contains a record of the DENSITY for each sample number, and as such may be combined with other files in this format.
The records output are for values of *START, *START+@INCRMENT, *START+2*@INCRMENT, and so on, until the value of *END for the input record is reached. This means that @INCRMENT must never be zero, or an infinite number of records lie between the values.
Input Files
|
Name |
Description |
I/O Status |
Required |
Type |
|
IN |
Input file containing numeric explicit fields START and END defining the range. |
Input |
Yes |
Undefined |
Output Files
|
Name |
I/O Status |
Required |
Type |
Description |
|
OUT |
Output |
Yes |
Undefined |
Output file containing extra records between the given ranges, the actual value being held in field NEWFIELD. |
Fields
|
Name |
Description |
Source |
Required |
Type |
Default |
|
START |
Name of field giving the start of the range. |
IN |
Yes |
Numeric |
Undefined |
|
END |
Name of field giving the end of the range. |
IN |
Yes |
Numeric |
Undefined |
|
NEWFIELD |
Name of field in output file containing the value for the record within the range. |
OUT |
Yes |
Numeric |
Undefined |
Parameters
|
Name |
Description |
Required |
Default |
Range |
Values |
|
INCRMENT |
Increment to be applied to START within range. |
Yes | Undefined | Undefined | Undefined |
Example
!EXPFLD &IN(COMDEN),&OUT(SAMDEN),*START(FROMNO),
*END(TONO),*NEWFIELD(SAMPLE),@INCRMENT=1
Error and Warning Messages
| Message |
Description |
|
>>> WARNING - RECORD nnnnnn HAS START nnnnnn.nn GT END nnnnnn.nn <<< |
Warning; illegal record. The record is output unchanged. |
|
>>> FIELD DOES NOT EXIST <<< |
Either the *START or the *END field does not exist in the input file. Fatal; the process is exited. |
|
>>> FIELD NOT NUMERIC <<< |
Either the *START or the *END field was alphanumeric. Fatal; the process is exited. |
