[R] Navigating a grid: update

[Michael Muratet]

Greetings

I went back over the examples in the R Graphics book on the grid  
webpage and saw an example which I have adapted and seems to work:

pushViewport(viewport(layout=grid.layout(nrow=26,ncol=2)))

pushViewport(viewport(layout.pos.col=1,layout.pos.row=1))
plot_gene_map(dna_segs=list(segs[[1]][["seg"]]),annotations=segs[[1]] 
[["annot"]],dna_seg_scale=T,
            
scale_cex 
= 
1.4 
,dna_seg_line 
=F,plot_new=FALSE,scale=F,arrow_head_length=1,annotation_cex=1.4,
           main="A",main_pos="left")
popViewport()

pushViewport(viewport(layout.pos.col=1,layout.pos.row=2))
plot_gene_map(dna_segs=list(segs[[2]][["seg"]]),annotations=segs[[2]] 
[["annot"]],dna_seg_scale=T,
            
scale_cex 
= 
1.4 
,dna_seg_line 
=F,plot_new=FALSE,scale=F,arrow_head_length=1,annotation_cex=1.4,
           main="B",main_pos="left")
popViewport()

pushViewport(viewport(layout.pos.col=1,layout.pos.row=3))
plot_gene_map(dna_segs=list(segs[[3]][["seg"]]),annotations=segs[[3]] 
[["annot"]],dna_seg_scale=T,
            
scale_cex 
= 
1.4 
,dna_seg_line 
=F,plot_new=FALSE,scale=F,arrow_head_length=1,annotation_cex=1.4,
           main="C",main_pos="left")
popViewport()

There must be some error in the way I was calling the function  
plotpush in the previous email.

Cheers

Mike