使用R创建循环函数以进行计算并保存结果

I have 20 Stations in 20 files (in txt format like Bariko.txt). I want to do calculations at the same time using a loop in one script, after I save the result in an other file using the (20) differents stations names (like bariko_result.txt) in the same directory(20 separated files). This is an example:I have 20 Stations in 20 files (in txt format l