R: subset dataframe based on column entry in multiple rows -

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I have a format that contains information about several genes: 

  chr gene area 1 100 110-bit Axon 1 120 130-bit intron 1 500 550 ball upstream, downstream 1 590 600 ball intron, upstream 1 900 9 80 dead promoter, upstream

I would like to start in the field column " I used to reduce the data to remove any lines containing genes with "Exxon" or "Promoter" I was using: 

  field & lt; - subset (table, area == "intron" | field == "downstream" | field == "upstream" | field == "downstream, upstream")

though it gives me Is: 

  chr start end gene area 1 120 130 bit intron 1 500 550 ball upstream, downstream 1 590 600 ball instrumron, upstream

What do I need : 

  After the GR field starts, the CRR starts 500 500 ball upstream, downstream 1 590 600 ball int Try it  grepl :  

  df [! Grepl ("Exon | Promoter", df $ area), #################################################### Grepl ("Exon | Promoter", df $ area), ############## Pre> 
 It is not clear to me why you are also removing row 2 with "intron" please explain to me.  
 Edit:  
 I think now, try it instead:  
  temp < - df $ Gene [grepl ("Exx | Promoter", DF $ area)] DF [! DF $ gn %%%,] Start # CR # 3 1 500 550 Ball Upstream, Downstream # 4 1 590 600 Ball Intron, Upstream

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