I have a data frame as follows:
Serial_number Amplification Voltage
(...)
51 912009913 50.8258 335.965
52 912009913 54.3855 337.966
53 912009913 58.3014 339.959
54 912009913 62.6758 341.956
55 912009913 67.5537 343.965
56 912009913 72.9996 345.965
57 912009913 79.1489 347.964
58 912009913 86.1111 349.965
59 912009913 94.0453 351.957
60 912009913 103.2320 353.957
61 912009913 113.9780 355.964
62 912009913 126.5830 357.964
63 912009913 141.6830 359.963
64 912009913 160.0800 361.962
65 912009913 182.8440 363.955
66 912009913 211.9870 365.957
67 912009913 250.4290 367.965
(...)
119 912009897 50.8925 329.968
120 912009897 54.5503 331.969
121 912009897 58.5886 333.968
122 912009897 63.0918 335.968
(...)
我想为每个
Serial_number
添加一行,以便我可以在该行上添加更多信息。行号/索引并不重要,但如果可以考虑的话,我不会抱怨。我该如何做到这一点?
unique()
函数。因此,unique(yourdataframe$Serial_number)
将返回唯一值。既然你知道如何添加行,那么应该没问题了。 - Shique