matrix - How to resolve integer overflow in r? -

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i have created matrix (mata) of 1000 rows , 1000 columns, , want calculate powers of matrix. works calculating 3rd power of matrix. when ask calculate 4th power, gives warning message saying,

"in mata * mata * mata * mata : nas produced integer overflow"

how can resolve problem?

since didn't give example:

set.seed(101) z <- matrix(rnorm(1e6),1e3) z2 <- round(z)*1000000 storage.mode(z2) <- "integer"

if want matrix power (as in z2 %*% z2 %*% z2 %*% z2), it's best use matrix or expm package.

library(expm) z4c <- z2 %^% 4

on other hand, if want elementwise product

z4d <- z2*z2*z2*z2 ## warning message "nas produced"

all need convert numeric.

storage.mode(z2) <- "numeric" z4e <- z2*z2*z2*z2  ## fine

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