escoEstGroupLib: Estimate esco library size parameters for discrete cell...
In JINJINT/ESCO: Simple Simulation of Single-cell RNA Sequencing Data

The Shapiro-Wilks test is used to determine if the library sizes are normally distributed. If so a normal distribution is fitted to the library sizes, if not (most cases) a log-normal distribution is fitted and the estimated parameters are added to the params object. Specifically, for a cell group, the fitting process uses only the cell samples within this cell group. See fitdist for details on the fitting.

1	escoEstGroupLib(counts, cellinfo = NULL, params)

`counts`	counts matrix to estimate parameters from.
`cellinfo`	a vector of length n, where n is the number of cells. Each entries is the group identity of a cell.
`params`	`escoParams` object to store estimated values in.