bit64 Questions
2
Solved
How can I pass an NA value from Rcpp to R in a 64 bit vector?
My first approach would be:
// [[Rcpp::export]]
Rcpp::NumericVector foo() {
Rcpp::NumericVector res(2);
int64_t val = 12345678901...
2
Solved
I came across the following result that seems very un-intuitive to me:
library(bit64)
x = as.integer64(200)
y = as.integer64(300)
min(x, y)
integer64
[1] 300
min.integer64(x, y)
integer64
[1] 300
...
2
Solved
I have data in a csv containing long integers. I am exchanging this data between csvs and fst files.
For example,
library(bit64)
library(data.table)
library(fst)
library(magrittr)
# Prepare exa...
Pals asked 21/2, 2017 at 23:32
1
Solved
I have a data frame consisting entirely of integer64 columns that I'd like to convert to be a matrix.
library(bit64)
(dfr <- data.frame(x = as.integer64(10^(9:18))))
## x
## 1 1000000000
## 2 1...
1
© 2022 - 2024 — McMap. All rights reserved.