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Process Help RANK - generate rank orders for a given field |
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Process Name |
Menu Path |
Link to Command Table |
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RANK |
Command line only |
Introduction
Ranks values of a given numeric or alphanumeric field in a file.
Files, Fields and Parameters
Input Files
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Name |
Description |
I/O Status |
Required |
Type |
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IN |
Input file. |
Input |
Yes |
Undefined |
Output Files
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Name |
I/O Status |
Required |
Type |
Description |
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OUT |
Output |
Yes |
Undefined |
Output file. |
Fields
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Name |
Description |
Source |
Required |
Type |
Default |
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VALUE |
Numeric or up to 4-character alpha field to be ranked. |
IN |
Yes |
Any |
Undefined |
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RANK |
New field to be created in output file, to contain rank order values. |
OUT |
Yes |
Undefined |
Undefined |
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CUMPROP |
New field to be created in output file, to contain cumulative frequency values of field RANK [values of CUMPROP lie between 0 and 1]. |
OUT |
Yes |
Numeric |
Undefined |
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PHI |
New field to be created in output file, to contain PHI [inverse normal distribution] transform of field CUMPROP [values of PHI lie between -3.5 and +3.5]. |
OUT |
Yes |
Numeric |
Undefined |
Notes
Output fields created are as follows:
RANK:Rank order (integer) of the specified field.
CUMPROP:Proportion value, computed as (RANK-0.5)/NDATA where NDATA is the number of data records used.
PHI: The standard normal deviate, computed as the PHI (or Z) transform of the CUMPROP value. PHI is centred on zero and has values in the range -3.5 to +3.5 for small data sets.
Example
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!RANK
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&IN(SEDREG),&OUT(SRANK), *VALUE(AU),*RANK(ORDER),*CUMPROP(AUCF),*PHI(AUPHI) |
Error and Warning Messages
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Message |
Description |
Solution |
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>>> ERR 120 <<< ( fileno) IN ffffffff |
Input file ffffffff read error. Fatal; the process is exited. |
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>>> ERR 121 <<< ( fileno) IN RANK |
File read error. Fatal; the process is exited. |
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>>> ERR 122 <<< ( fileno) IN RANK |
No numeric fields in file, or fields specified were not numeric. Fatal; the process is exited. |
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