从数据框中的索引请求中删除列

Question

Hi I currently have the code:

matrixed.data <- data.matrix(df[1:row.dim,7:col.dim])

Where the row.dim and col.dim are variables for the size of the whole frame. I would like to remove the column "df$WEATHER" that is included in the col.dim selection but don't know how to word it. I have tried adding - df$WEATHER and !df$WEATHER inside the bracket but fear I'm misinterpreting the scope of these commands.

Is it possible to do this without creating a new col.dim variable; I'm trying to keep the code as limitless as possible as the data frame may increase in size in the future.

Answer 1

Thank you digEmAll! I thought it would be reasonably simple I'm just a bit too green at R to think of something like that. For others what worked for me was:

(df[1:row.dim, setdiff(7:col.dim,which(names(df) == "WEATHER"))])