Description Usage Arguments Value Examples
Returns the indices of matching elements.
1 | ff_which_matrix(X, cond, by = 100, enclos = parent.frame())
|
X |
The |
cond |
The condition to evaluate |
by |
The chunk size. |
X
1 2 3 4 5 6 7 8 9 10 |
mymat <- ff(vmode="double", dim=c(50,50))
mymat[4,5] <- 3
mymat[5,5] <- 4
mymat[46, 46] <- 1
ff_which_matrix(mymat, mymat > 2)
r <- 1.5
ff_which_matrix(mymat, mymat > r)
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