widenDSS: Create a wide data.frame using reshape2::dcast

In sib-swiss/dsSwissKnife: DataSHIELD Tools and Utilities - server side

Create a wide data.frame using reshape2::dcast

Description

This function transforms the data from long (ex: CDISC) to wide format using the function dcast from the package reshape2.

Usage

widenDSS(
  what,
  measure,
  cols = NULL,
  formula = NULL,
  by.col = NULL,
  completeCases = FALSE,
  fun.aggregate = NULL
)

Arguments

what	a data.frame
measure	name of the column which stores values, this goes straight into the parameter value.var in reshape2::dcast
cols	a vector of columns used in the formula. They must exist in 'what'. If null, all the columns from 'what' will be used.
formula	the formula to use by reshape2::dcast. If left null an attempt will be made to guess it with suggest.pivot.formula.
by.col	typically the patient id, the column that will end up as key of the resulting 'wide' data.frame. In most cases this can be left null as it's been set when the package was loaded
completeCases	a logical, keep only complete cases?

Value

a data.frame in wide format

sib-swiss/dsSwissKnife documentation built on Nov. 27, 2024, 6:03 p.m.