get.z.v.knownsigma: get.z.v.knownsigma function
In Gtmille2/seamlessTrial: What the Package Does (One Line, Title Case)

gets z and v for all treatments at first look and for selected treatment at second look using known values for sigma and rho at first look. Selection is of best treatment from first look

1	get.z.v.knownsigma(data, n1, N1, N, sigma, rho)

`data`	data set with primary and secondary endpoint, and treatment
`n1`	Number of patients with primary endpoint available at first analysis
`N1`	Number of patients with secondary endpoint available at first analysis
`N`	The total number of patients in the trial
`sigma`	is the known sigma for the population
`rho`	is the known correlation between endpoints.