reduce: Apply simple data reductions

In Cyclops: Cyclic Coordinate Descent for Logistic, Poisson and Survival Analysis

Apply simple data reductions

Description

reduce reports the count of non-zero elements, sum and sum-of-squares for specified covariates in a Cyclops data object.

Usage

reduce(object, covariates, groupBy, power = 1)

Arguments

object	A Cyclops data object
covariates	Integer or string vector: list of covariates to report
groupBy	Integer or string (optional): generates a segmented reduction stratified by this covariate. Setting groupBy = "stratum" segments reduction for strataID
power	Integer: 0 = non-zero count, 1 = sum, 2 = sum-of-squares

Value

Specified reduction as number or data.frame if segmented.

Cyclops documentation built on Nov. 2, 2023, 6:03 p.m.