...y
1. git clone https://github.com/atks/vt.git
#change directory to vt
2. cd vt
#run make, note that compilers need to support the c++0x standard
3. make
#you can test the build
4. make test
报错1：
gcc -g -Wall -O2 -I. -c -o cram/cram_index.o cram/cram_index.cgcc -g -Wall -O2 -I....
...值的简单补齐
> library(readxl)> data <- read_excel('data.xlsx')> data# A tibble: 8 × 2 type num <chr> <dbl>1 a 752 b 723 <NA> 664 a NA5 c 696 b 657 a 728 c NA
...