ANOVA1 Process
To access this process:
- View the Find Command screen, select ANOVA1 and click Run.
- Enter "ANOVA1" into the Command Line and press <ENTER>.
See this process in the Command Table.
Process Overview
Carries out one-way analysis of variance on groups of replicate values of a numeric field in a file.
All results are output as an analysis of variance (ANOVA) table. This lists the sources of variation, a column of the corrected sums of squares resulting from the various sources, degrees of freedom associated with each, a column of mean squares which are the sample-based estimates of the variances, and the F-value.
Note: The total keyfield must be no more than 5 words long. Remember that an alphanumeric field should be no more than two words long.
Input Files
Name |
Description |
I/O Status |
Required |
Type |
IN |
Input file, sorted on required keyfields. |
Input |
Yes |
Table |
Fields
Name |
Description |
Source |
Required |
Type |
Default |
VALUE |
Field for analysis of variance. |
IN |
Yes |
Numeric |
Undefined |
KEY1 |
Keyfield 1 for replicate observations. |
IN |
Yes |
Numeric |
Undefined |
KEY2 |
Keyfield 2. |
IN |
No |
Numeric |
Undefined |
KEY3 |
Keyfield 3. |
IN |
No |
Numeric |
Undefined |
KEY4 |
Keyfield 4. |
IN |
No |
Numeric |
Undefined |
KEY5 |
Keyfield 5. |
IN |
No |
Numeric |
Undefined |
KEY6 |
Keyfield 6. |
IN |
No |
Numeric |
Undefined |
KEY7 |
Keyfield 7. |
IN |
No |
Numeric |
Undefined |
KEY8 |
Keyfield 8. |
IN |
No |
Numeric |
Undefined |
KEY9 |
Keyfield 9. |
IN |
No |
Numeric |
Undefined |
KEY10 |
Keyfield 10. |
IN |
No |
Numeric |
Undefined |
Example
!ANOVA1 &IN(SEDREG),*VALUE(MN),*KEY1(SNUM)
Error and Warning Messages
Message |
Description |
>>> VALUE FIELD DOES NOT EXIST <<< |
The numeric field specified for *VALUE does not exist. Fatal; the process is exited. |
>>> ERR 47 <<< ( 0) IN FNDKEY |
None of the keys specified were in the file. Fatal; the process is exited. |
>>> INPUT FILE NOT SORTED ON KEYFIELD(S) <<< |
Fatal; the process is exited. |
>>> ERR 121 <<< ( fileno) IN ANOVA1 |
File read error. Fatal; the process is exited. |
>>> MORE THAN 1000 REPLICATES <<< |
The maximum number of points which may be processed is 1000. All other points are ignored, and processing continues with the first 1000.
|
>>> MORE THAN 250 GROUPS <<< |
The maximum number of groups of points which may be processed is 250. All other groups of points are ignored, and processing continues with the first 250.
|
>>> TOO FEW REPLICATES AND/OR GROUPS <<< |
Insufficient data in input file for analysis of variance. Fatal; the process is exited.
|