There are many exploratory analyses that you can undertake at this point. Here, we show a simple table means as well as a scatterplot matrix that reveals the group structure.
Here are the group means on the attributes:
These statistics are presented for descriptive purposes. You are looking for overt differences in the means across the three types. If an input's means vary across type, then this suggests that the variable might be a useful discriminator. On the other hand, do not make too much of apparent differences as these are single-variable statistics. Discriminant analysis brings all of the inputs into the model at the same time, and therefore you get a sense of a variable's impact in the presence of other variables.
You might also try various charts. Here is a scatterplot matrix showing five of the attributes:
The...