search for: befragung1

Hello, I guess a have a very simple problem though up to now couldn't solve it: I want to plot two datasets wihtin one plot like plot(x) provides it for one dataset(type="b" that is: points connected by lines). Example data 'x': Befragung1 Befragung2 Befragung3 Geschlecht 2.25 2.34 1.78 weiblich 1.34 3.45 2.23 maennlich The two rows of the example above form two datasets. Now I'm looking for something like plot(~x |Geschlecht, ... ): X-axis containing Befragung1...3, y-axis containing the values given by the m...