[R] Data Extraction

[Muhuri, Pradip (SAMHSA/CBHSQ)]

Hello,

I would appreciate if someone could help me resolve the following:

1. df1[!is.na( X1 | X2 | X3 | X4 | X5),][,1:5] # This does not work

2. Is these message harmful?  The following object(s) are masked from 'df1 (position 3)':
    X1, X2, X3, X4, X5

Thanks,

Pradip Muhuri


#Reproducible Example
set.seed(5)
df1<-data.frame(matrix(sample(c(1:10,NA),100,replace=TRUE),ncol=5))
attach (df1)
#delete rows if any of them NA for X1
df1[!is.na( X1),][,1:5] # This works

#delete rows if any of them NA for X1, X2, X3, X4 or X5
df1[!is.na( X1 | X2 | X3 | X4 | X5),][,1:5] # This does not work