Hello -

Rajasekaramya wrote:
Hi there,

I have a dataframe length.unique.info
length.unique.info
abc 12  345
def  16  550
lmn  6   600

Is this really the output when you print your data.frame? You may have column names for columns 1, 2, and 3? Is the first column a column of row.names, or not? What does dim(length.unique.info) give?

Assuming you have names for columns "1", "2" and "3", named, e.g., X1, X2 and X3

subset(length.unique.info, X2 <= 5 & X3 >= 500, select = c(X1))

I don't know what you're trying to do by indexing with 'i'.

And to answer your question about '&', see ?Logic


I want those names that fall under the condition (length.unique.info[,2][i]
<=5 && length.unique.info[,3][i] >=500)

abcder<-length.unique.info[which(length.unique.info[,2][i] <=5 &&
length.unique.info[,3][i] >= 500),1]

will "&&" look for both the condition.It isnt returning names is there
anything i am missing.Kindly suggest me the way to do it.

Regards
Ramya




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