Displaying 3 results from an estimated 3 matches for "dgerlanc".
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gerlanc
2006 Jul 14
1
Splitting the left and right hand terms of a formula
Let's say I have the following formula:
a.formula <- x ~ y + z
I want to extract the left and right-hand sides of the function so
that I have two character vectors like the ones you would create using
the following assignments:
left.hand.side <- "x"
right.hand.side <- c("y", "z")
One way to do this follows:
left.hand.side <-
2006 Aug 04
2
Sampling from a Matrix
Hello all,
Consider the following problem:
There is a matrix of probabilities:
> set.seed(1)
> probs <- array(abs(rnorm(25, sd = 0.33)), dim = c(5,5), dimnames = list(1:5, letters[1:5]))
> probs
a b c d e
1 0.21 0.27 0.50 0.0148 0.303
2 0.06 0.16 0.13 0.0053 0.258
3 0.28 0.24 0.21 0.3115 0.025
4 0.53 0.19 0.73 0.2710 0.656
5 0.11 0.10 0.37 0.1960
2006 Jul 25
1
Follow Up To: Splitting the left and right hand terms of a formula
Hi All,
I sent the following message to R-help on July 14th, 2006:
Let's say I have the following formula:
a.formula <- x ~ y + z
I want to extract the left and right-hand sides of the function so
that I have two character vectors like the ones you would create using
the following assignments:
left.hand.side <- "x"
right.hand.side <- c("y", "z")
One