In the gene set workflow (1), when preparing samples from Cufflinks, the codes follow as:

> names(cuff.fc)=gnames.eg[sel2,2]
> range(exp.fc)
> cuff.fc[cuff.fc>10]=10
> cuff.fc[cuff.fc< -10]=-10
> exp.fc=cuff.fc
> out.suffix="cuff"

However the output of range(exp.fc) is

Error: object 'exp.fc' not found

and I don't see any where that the code lines create this object! Any help?

(1) RNA-Seq Data Pathway and Gene-set Analysis Workflows, Weijun Luo 2014.