CALL td_analyze (
'chisquaretest',
'required_parameter_list [ optional_parameter; [...] ]'
);
- required_parameter_list
database = input_database_name;
tablename = input_table_name;
- optional_parameter
{ columnofinterest = column_name |
columns = column_name [,...] |
fallback = { true | false } |
firstcolumns = column_name [,...] |
gensqlonly = { true | false } |
groupby = column_name [,...] |
multiset = { true | false } |
outputdatabase = output_database_name |
outputtablename = output_table_name |
overwrite = { true | false } |
secondcolumns = column_name [,...] |
statsdatabase = stats_database_name |
teststyle = { chisq | median } |
thresholdprobability = threshold_prob
}
Syntax Elements
- database
- The database containing the table to analyze.
- tablename
- The table containing the columns to analyze. It must reside in the database indicated by the database parameter.
- columnofinterest
- [Optional] Only if teststyle=median, the input table column that represents the dependent variable (numeric). It must reside in the table indicated by the tablename parameter.
- columns
- [Optional] Only if teststyle=median, the input table columns that represent the independent variables (categorical). They must reside in the table indicated by the tablename parameter.
- fallback
- [Optional] Whether to give the output table the FALLBACK attribute.
- Default: false
- firstcolumns
- [Optional] Only if teststyle=chisq, one or more input table columns that represent the first variable pairs for analysis.
- If the product of the number distinct values in these column pairs exceeds 2000 and gensqlonly=false, the analysis of that combination is skipped.
The number of combinations of firstcolumns and secondcolumns cannot exceed 100.
- gensqlonly
- [Optional] True returns the SQL for the function as a result set but does not run it.
- False runs the SQL for the function but does not return it as a result set.
- Default: false
- groupby
- [Optional] The columns for which to separately analyze each value or combination of values.
- Disallowed with teststyle=chisq.
- Default behavior: Input is not grouped.
- multiset
- [Optional] Whether to give the output table the MULTISET attribute.
- Default: false
- outputdatabase
- [Optional] The name of the database to contain the analysis results table.
- outputtablename
- [Optional] The name of the table to store the analysis results.
- Default behavior: Function returns results as a result set but does not create an output table.
- secondcolumns
- [Optional] Only if teststyle=chisq, one or more input table columns that represent the second variable pairs for analysis.
- Pairs are a combination of columns 1 and 2.
- statsdatabase
- [Optional] The database where the statistical test metadata tables are installed.
- Default behavior: The function searches the source database for these tables.
- teststyle
- [Optional] The test style, chisq (chi-squared) or median.
- Default: chisq
- thresholdprobability
- [Optional] The threshold (alpha) probability, below which the null hypothesis is rejected.
- Default: 0.05