--- a
+++ b/man/addMetadata.Rd
@@ -0,0 +1,23 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/objects.R
+\name{addMetadata}
+\alias{addMetadata}
+\title{addMetadata}
+\usage{
+addMetadata(object, assay = NULL, type = NULL, value, label)
+}
+\arguments{
+\item{object}{a VoltRon object}
+
+\item{assay}{assay name (exp: Assay1) or assay class (exp: Visium, Xenium), see \link{SampleMetadata}. 
+if NULL, the default assay will be used, see \link{vrMainAssay}.}
+
+\item{type}{the assay type: ROI, spot or cell, or all for the entire metadata object}
+
+\item{value}{the new values of the metadata column}
+
+\item{label}{the label of the new column, either a new column or an existing one}
+}
+\description{
+adding new columns or updating the values of the existing columns
+}