Convert matrix to numeric
On 03/08/2011 3:04 PM, Jeffrey Joh wrote:
I have a matrix that looks like this:
structure(c("0.0376673981759913", "0.111066500741386", "1", "1103",
"18", "OPEN", "DEPR", "0.0404073656092023", "0.115186044704599",
"1", "719", "18", "OPEN", "DEPR", "0.0665342096693433", "0.197570061769498",
"1", "1103", "18", "OPEN", "DEPR", "0.119287147905722", "0.356427096010845",
"1", "1103", "18", "OPEN", "DEPR"), .Dim = c(7L, 4L), .Dimnames = list(
c("Sn", "SlnC", "housenum", "date", "hour", "flue", "pressurization"
), c("10019.BLO", "1002.BLO", "10020.BLO", "10021.BLO")))
How do I convert rows 1-5 to numeric? I tried mode()<- "numeric" but that doesn't change anything.
Every entry in a matrix has the same type, so you can't change just those rows other than by extracting them into a separate matrix and changing that. Duncan Murdoch
I also tried converting this to a table then converting to numeric, but I got: (list) object cannot be coerced to type 'double' Jeff
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