How to get all numbers greater than x with positions?

Question

V <- c(1,3,2,4,2,3,1); X <- 3; pos <-V[V == X]; 

pos 3 3 . I need all 3 positions;

I need 2 and 6 ; which are positions 3 in V .

Answer 1

Use which

 pos <- which(V == 3) 

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Not what you are asking for, but useful anyway: you can also use which.min and which.max to find the position of the minimum and maximum values ​​of the array.