I have used the West Eurasian cline calculator 'weac2' to assess the Tyrolean Iceman and Neolithic Swedes. The admixture proportions can be seen below, and appear largely consistent with all previous analyses of the same individuals:
It is interesting that Gok4, the Swedish Megalithic TRB female belongs to the Atlantic_Baltic and Near_East components, while the two major Y-chromosome haplogroups associated with West European Neolithic sites so far are I2a1 and G2a (Treilles and Dolmen of La Pierre Fritte) whose distribution very well parallels these two components: Atlantic_Baltic/I2a1 in Europe, and Near_East/G2a in the Near East.
The simplest explanation, based on the available evidence, is that the Neolithic populations of Europe were descended from G2a-bearing pioneers entering Europe from the southeast, and encountering an I2a1-bearing population of pre-farmers in Europe itself. The high frequency of I2a1 in Sardinia, as well as the presence of G2a in that population serves to underscore the substantial genetic continuity between ancient Neolithic Europeans and modern Sardinians.
The absence of the South_Asian component in 'weac2' in all of these individuals is also important. This component captures ancestry (both Caucasoid and Ancestral South Indian) from further east and south, where both G2a/I2a1 are quite rare. As I have noted before, both Europe and South Asia have been affected in late/post-Neolithic times by migrations from West Asia.
It is tempting to associate this population movement with the spread of Indo-European languages, and we can only eagerly await more autosomal ancient DNA samples that will reveal the arrival of the "missing components" over the Neolithic substratum.