r df remove column
Given how powerful R is, I figured there might be a better way than dropping each column one by one. share. ,We can use setdiff to get all the columns except the 'year' and 'category'. df1 <- df[setdiff(colnames(df), c('year', 'category'))] df1 # vin make model #1 1 A D #2 ... , I use data.table's := operator to delete columns instantly regardless of ... before it gets to R. This isn't a critique of R, just a preference for using ...,Another way of doing it using base R: [code]test <- data.frame(x = c(1,2,3,4), ... d D [/code]To remove column “y”: [code]test2 <- test[,-2] x z 1 1 A 2 2 B 3 3 C 4 4 ... ,You should use either indexing or the subset function. For example : R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8) R> df x y z u 1 1 2 3 4 2 2 3 4 5 3 3 4 5 6 4 4 ... , Basic subsetting: album2 <- album2[, -5] #delete column 5 album2 <- album2[, -c(5:7)] # delete columns 5 through 7., , You can set it to NULL . > Data$genome <- NULL > head(Data) chr region 1 chr1 CDS 2 chr1 exon 3 chr1 CDS 4 chr1 exon 5 chr1 CDS 6 chr1 ...
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 r df remove column 相關參考資料
Drop data frame columns by name - Stack Overflow
Given how powerful R is, I figured there might be a better way than dropping each column one by one. share. https://stackoverflow.com How do I delete columns in R data frame - Stack Overflow
We can use setdiff to get all the columns except the 'year' and 'category'. df1 <- df[setdiff(colnames(df), c('year', 'category'))] df1 # vin make model #1 1 A D... https://stackoverflow.com How do you remove columns from a data.frame? - Stack ...
I use data.table's := operator to delete columns instantly regardless of ... before it gets to R. This isn't a critique of R, just a preference for using ... https://stackoverflow.com How to delete variables (columns) in RStudio - Quora
Another way of doing it using base R: [code]test <- data.frame(x = c(1,2,3,4), ... d D [/code]To remove column “y”: [code]test2 <- test[,-2] x z 1 1 A 2 2 B 3 3 C 4 4 ... https://www.quora.com How to drop columns by name in a data frame - Stack Overflow
You should use either indexing or the subset function. For example : R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8) R> df x y z u 1 1 2 3 4 2 2 3 4 5 3 3 4 5 6 4 4 ... https://stackoverflow.com how to remove multiple columns in r dataframe? - Stack ...
Basic subsetting: album2 <- album2[, -5] #delete column 5 album2 <- album2[, -c(5:7)] # delete columns 5 through 7. https://stackoverflow.com R : Keep Drop Columns from Data Frame - ListenData
https://www.listendata.com Remove an entire column from a data.frame in R - Stack ...
You can set it to NULL . > Data$genome <- NULL > head(Data) chr region 1 chr1 CDS 2 chr1 exon 3 chr1 CDS 4 chr1 exon 5 chr1 CDS 6 chr1 ... https://stackoverflow.com |