[R] how to build a heatmap like this

[escaping]

Hi, everyone,

I am a new R user, and was required to build several heatmaps as shown in 
attached file. To reach it, I need to normalize the RPKM data  of exon-level 
expression to generate Z-score using R. The data looks like
mpleId

                        
                                geneName

                        
                                start

                        
                                end

                        
                                rpkm

                


                                PC10-6

                        
                                KIF1B

                        
                                10270764

                        
                                10270936

                        
                                4.00059

                


                                PC10-6

                        
                                KIF1B

                        
                                10292308

                        
                                10292492

                        
                                35.3023

                


                                PC10-6

                        
                                KIF1B

                        
                                10316305

                        
                                10316381

                        
                                85.9611

                


                                PC10-6

                        
                                KIF1B

                        
                                10318551

                        
                                10318730

                        
                                64.5961
Exons and introns are required to shown on the heatmap.

Does anyone know how to do it? 

Thanks a lot!

Yizi



                                          
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