MarkLogic 9 Product Documentationcts functions (Math Lexicon)
MarkLogic Server provides aggregate math functions that make use of value lexicons
to calculate results. The math lexicon functions differ from the math functions in the
math: namespace in that math lexicon functions take frequency into
consideration.
This section describes the math lexicon APIs.
18 functions
| Function name | Description |
|---|---|
| cts.aggregate | Executes a user-defined extension aggregate function against a value lexicon or n-way co-occurrence of multiple value lexicons. |
| cts.avgAggregate | Returns the average of the values given a value lexicon. |
| cts.correlation | Returns the frequency-weighted correlation given a 2-way co-occurrence. |
| cts.countAggregate | Returns the count of a value lexicon. |
| cts.covariance | Returns the frequency-weighted sample covariance given a 2-way co-occurrence. |
| cts.covarianceP | Returns the frequency-weighted covariance of the population given a 2-way co-occurrence. |
| cts.linearModel | Returns a linear model that fits the frequency-weighted data set. |
| cts.max | Returns the maximal value given a value lexicon. |
| cts.median | Returns a frequency-weighted median of a sequence. |
| cts.min | Returns the minimal value given a value lexicon. |
| cts.percentile | Returns a sequence of percentile(s) given a sequence of percentage(s). |
| cts.percentRank | Returns the rank of a value in a data set as a percentage of the data set. |
| cts.rank | Returns the rank of a value in a data set. |
| cts.stddev | Returns a frequency-weighted sample standard deviation given a value lexicon. |
| cts.stddevP | Returns a frequency-weighted standard deviation of the population given a value lexicon. |
| cts.sumAggregate | Returns the sum of the values given a value lexicon. |
| cts.variance | Returns a frequency-weighted sample variance given a value lexicon. |
| cts.varianceP | Returns a frequency-weighted variance of the population given a value lexicon. |