R中大型.tsv文件的内存处理效率更高

The script below loads a large tsv file into memory into a data frame, then runs a linear model on each of the columns of the file. I wrote the script for a smaller file, but then tried to rerun it on a larger one, and it will not load it (1.3gb) but also does not issue an error message.The script below loads a large tsv file into me