I'm still very new to working with R and am absolutely despairing and unfortunately can't find a suitable answer for my problem.
I have collected all my data in an Excel. My dependent and independent variables are also displayed normally in the summary. With my control variables the following happens:
- instead of me having a summary row for the control variable, all the sub-values appear (see Figure 1).
- with my other control variables the same thing happens but instead of values NaN is displayed (for t-value, pr and Std.error) ... and I just don't understand what's wrong.
Do you know where my error could be? Many thanks already!