dssCov: The covariance matrix of a data frame or matrix

In IulianD/dsSwissKnifeClient: DataSHIELD Tools and Utilities - client side

Description

The covariance matrix of a data frame or matrix

Usage

dssCov(
  x,
  collist = NULL,
  type = "combine",
  async = TRUE,
  wait = TRUE,
  datasources = NULL
)

Arguments

x	a character name of the data frame
collist	a vector of columns for the covariances. They must exist in x. If null, all the *numeric* columns from x will be used.
type	a character which represents the type of analysis to carry out. If type is set to 'combine', global column means are calculated if type is set to 'split', the column means are calculated separately for each node.
async	a logical, see datashield.aggregate
wait	a logical, see datashield.aggregate
datasources	a list of opal objects obtained after logging into the opal servers (see datashield.login)

Value

a list with one element for each node (or one $global element if type='combine'). Each element contains a vector with the respective column means, the covariance matrix and the number of rows

IulianD/dsSwissKnifeClient documentation built on June 23, 2020, 4:38 p.m.