This is easy :

awk '{print $2}' carma.dPCA.fluctuations.dat | plot -h
awk '{print $3}' carma.dPCA.fluctuations.dat | plot -h
awk '{print $4}' carma.dPCA.fluctuations.dat | plot -h
awk '{print $5}' carma.dPCA.fluctuations.dat | plot -h
awk '{print $6}' carma.dPCA.fluctuations.dat | plot -h
...

giving something like

which could possibly be interpreted as a sufficiency of the top five (or, max, six) eigenvectors to describe the system's structural transitions.