CODEWITHSUNDEEP
r
Error404
Error404

Reputation: 7131

adding double quotations to a name

I was trying to add double quotes to a name in R and it did not work out for me.

I have a variable called X, which looks like this

> X
[1] BD          Rbo5s        SMA.         01m          bo.
[6] Lv          w8s          it           2s           ds          
[11] J.t        r.Dt         2i.          J_D          32i.        
[16] V          tpMin3_Bh.s. T1m          R8m          o8m         
[21] m          wM12_AEA.dm. A3i          R8m          28s

I have a big matrix (file1) and I was trying to find the columns that has the colnames as in "X" and save them in (file2).

Now I am using this command, and it is not working

file2 = file1[,X]

I thought adding a double quotation would solve this problem (would it?), but i failed typing in the command for this. Help needed! :)

Thanks,

Upvotes: 0

Views: 85

Answers (1)

Michael Dunn
Michael Dunn

Reputation: 8313

X should be a vector of characters.

R> X = c("BD","Rbo5s", "SMA.", "01m")
R> X
[1] "BD"    "Rbo5s" "SMA."  "01m"

When you display your X it has the format:

> X
[1] BD          Rbo5s        SMA.         01m          bo.

-- with no quotes, meaning that this isn't a character vector. Fix that and the indexing should work.

Upvotes: 2

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