dieudonne ngaya

Hi all, I have a data file with two columns like this: date avelp1219p01 avelp1219p02 avelp1219p03 avelp1219p04 2017.11.12 1.9294 2.4847 1.7317 2.0424 2017.11.13 1.9451 2.49669 1.7477 1.99816 2017.11.14 1.9451 2.49669 1.7477 1.99816 2017.11.15 1.9451 2.49669 1.7477 1.99816 2017.11.16 1.9451 2.49669 1.7477 1.99816 2017.11.17 1.9451 2.49669 1.7477 1.99816 I want to plot the colums value for avelp1219p01, avelp1219p02, avelp1219p03, avelp1219p04 if column value is greater than or equal 2.5. Without...