Combined subsetting in R?

Question

I trying to subset 3 ys for when xs are -1, 0, and 1 in my code below. But I was hoping to do this all at once using y[c(x == -1, x == 0, x == 1)] which apparently does not work (see below).

Any better way to do this subsetting all at once?

x = seq(-1, 1, l = 1e4)
y = dcauchy(x, 0, sqrt(2)/2)
y[c(x == -1, x == 0, x == 1)] ## This subsetting format doesn't work

score 2 · Accepted Answer · answered Sep 10 '17 at 02:40

2

We can do this.

y[x == -1| x == 0| x == 1]

Or this

y[x %in% c(-1, 0, 1)]

answered Sep 10 '17 at 02:40

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But these two give two `y`s! We expect 3 `y`s? – rnorouzian Sep 10 '17 at 02:42
1

@rnorouzian https://stackoverflow.com/questions/9508518/why-are-these-numbers-not-equal – Hong Ooi Sep 10 '17 at 02:43

Combined subsetting in R?

1 Answers1