I'm a bloody beginner with R Studio and need to analyze some data for my bachelor thesis. The thing is that I have kind of struggle with deleting some rows. I tried it with the function na.omit . Unfortunately, it deletes every data I have because there are a lot of Nas which have to be because of the design. I just need that the rows of the whole data are deleted if in the row of 10 specific columns is any NA. Does anybody have an idea how to handle this? Please help me I'm kind of desperate and that would save my thesis!