R认为以下CSV文件中的“ nonrow”列（我添加为测试人员）和“ sample”列不存在（它表示它们为null）。 （它看到每隔一列都很好...）
nonrow,,Fill Weight,Fill Weight,Fill Weight,Fill Weight,xbar,r,sample
0,,352,348,350,351,350.25,3,1
0,,351,352,351,350,351,2,2
0,,351,346,342,350,347.25,8,3
0,,349,353,352,352,351.5,1.5,4
0,,351,350,351,351,350.75,1,5
0,,353,351,346,346,349,5,6
0,,348,344,350,347,347.25,6,7
0,,350,349,351,346,349,5,8
0,,344,345,346,349,346,4,9
0,,349,350,352,352,350.75,2,10
0,,353,352,354,356,353.75,4,11
0,,348,353,346,351,349.5,7,12
0,,352,350,351,348,350.25,3,13
0,,356,351,349,352,352,3,14
0,,353,348,351,350,350.5,3,15
0,,353,354,350,352,352.25,4,16
0,,351,348,347,348,348.5,1.5,17
0,,353,352,346,352,350.75,6,18
0,,346,348,347,349,347.5,2,19
0,,351,348,347,346,348,2,20
0,,348,352,351,352,350.75,1.25,21
0,,356,351,350,350,351.75,1.75,22
0,,352,348,347,349,349,2,23
0,,348,353,351,352,351,2,24
我尝试过移动该列，重命名它，并尝试使用tester列（它也神秘地看不到）。有没有人有什么建议？谢谢！