ds.Surv: Client side function calling 'SurvDS'
In sofack/dsPackagesClient: Performs survival analysis in DataSHIELD

This function is similar to R function Surv.

ds.Surv(
  time = NULL,
  time2 = NULL,
  event = NULL,
  type = NULL,
  newobj = NULL,
  datasources = NULL
)

`time`	a numeric vector indicating the start or follow up time.
`time2`	a numeric vector indicating the ending time of the interval for interval censored or counting process data only.
`event`	a numeric vector providing the name of the status indicator(event).Usually binary e.g 0=alive, 1=dead.For multiple endpoint data the event variable will be a factor, whose first level is treated as censoring. Although unusual, the event indicator can be omitted, in which case all subjects are assumed to have an event.
`type`	character string specifying the type of censoring.Possible values are "right", "left", "counting", "interval", "interval2" or "mstate"..
`newobj`	a character string specifying the name of the object to which the survival object on the serverside in each study is to be written. If no <newobj> argument is specified, the output object defaults to "Survobj".
`datasources`	a list of `DSConnection-class` objects obtained after login. If the `datasources` argument is not specified the default set of connections will be used: see `datashield.connections_default`.