[1] "abstract_factors is start"
Error in scan(file = file, what = what, sep = sep, quote = quote, dec = dec, :
line 2 did not have 3 elements
Calls: abstract_factors -> read.table -> scan
Execution halted
你的输入文件有问题,你打开都看看的和课程里面的对比一下;
分组文件可能格式错误;有一行少了信息;
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