Hi every one,

I have a problem during creating the Venn Diagram,  after loading the VennDiagram package and my lists, when running the ListA&V1 command,  I will encounter the following error:

library(VennDiagram)

ListA<- read.csv("C:/R Database/List/mir-21.txt", header = FALSE)

ListB<- read.csv("C:/R Database/List/mir-29a.txt", header = FALSE)

ListC<- read.csv("C:/R Database/List/mir-29b.txt", header = FALSE)

ListD<- read.csv("C:/R Database/List/mir-29c.txt", header = FALSE)

head(ListA)

      V1

1  EPHA4

2  RASA1

3   FGL2

4  PEAK1

5 IL1RAP

6  VPS35

A<- ListA&V1

Error: object 'V1' not found

I would be grateful if you could guide me to resolve this error.

This is not the correct support site for VennDiagram, which is a CRAN package. Try R-help or stackoverflow.

However, if you are trying to access the column V1 from ListA the correct syntax is A <- ListA$V1 or A <- ListA[["V1"]]