次のデータがあるとします。
questionTagMatrix <- data.frame( question1=c("0","1","0"), question2=c("1","0", "0"), question3=c("0","1","0"), question4=c("0","1","1") )
rownames(questionTagMatrix)[1] <- "php"
rownames(questionTagMatrix)[2] <- "html"
rownames(questionTagMatrix)[3] <- "javascript"
newQuestion <- data.frame( newquestion=c("0","1","0") )
rownames(newQuestion)[1] <- "php"
rownames(newQuestion)[2] <- "html"
rownames(newQuestion)[3] <- "javascript"
questionTagMatrix等しいのすべての列を見つけるにはどうすればよいnewQuestionですか?