Sent from my phone. Please excuse my brevity.
On May 30, 2016 11:38:46 AM PDT, Carl Sutton via R-help <r-help at r-project.org> wrote:
>Hi Guru's
>In my quest to understand R I have what I thought was a simple exercise
>that now has me baffled.? Why the error message after running this
>code?? I am totally baffled by the error message.? I was expecting rows
>1 and 3 of the x matrix to be returned, and have not a clue as to why
>this becomes a subscript difficulty.? The manual was of no help in this
>matter.
>
>x <- c(1:3,2:4)
>x? <- matrix(x, nrow = 3)
>x
>z <- c(1:4,1,1,0,0,1,0,1,0)
>z <- matrix(z, ncol = 3)
>z
>x[x[,2]>= 3,]
>x
>z %% 2 == 1
>x[z %% 2 == 1,]Error in x[z%%2 == 1, ] : (subscript) logical subscript
>too long
>Many thanks for your assistance.
>Carl Sutton CPA
>
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>
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