Data Manipulation

Thank you Dieter and Rolf,

I have solved the slash Problem, but I still struggling  with the output
files.

I have tried this
 by(AlexETF,AlexETF$Industry,function(a) {filename = paste("C:/ab/",gsub("
","",a$Industry[1]),".txt",sep="")
        print(filename)
	write.table(a,file=filename,col.names = FALSE)     
    }
 )

and this 

 by(AlexETF,AlexETF$Industry,function(a) {filename = paste("C:/ab/",gsub("
","",a$Industry[1]),".txt",sep="")
        print(filename)
	write(as.character(a),file=filename)     
    }
 )  


I want in each file just the ticker with out any quotations mark.

CMM
FMCN
IPG
MWW 

Thanks in advance, 
Peter

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