regarding object creation

[guttula91]

Iam trying to create the object i got this error

object <- CreateCasperObject(raw.data=data,loh.name.mapping=loh.name.mapping, sequencing.type="bulk",

•                          cnv.scale=3, loh.scale=3, matrix.type="normalized", expr.cutoff=4.5,
  

•                          annotation=annotation, method="iterative", loh=loh, filter="median",  
  

•                          control.sample.ids=control.sample.ids, cytoband=cytoband)
  

Error in initialize(value, ...) : object 'control.sample.ids' not found