KNMI = readtable('uurgeg_215_2011-2020.txt','ReadRowNames',true);
[KNMItable,missingIndices2] = fillmissing(KNMI,"constant",0);
Time = datetime(KNMItable.YYYYMMDD,'ConvertFrom','yyyymmdd');
Temperatuur = KNMItable.T;
GlobalStraling = KNMItable.Q;
TQTable = table(Time, Temperatuur, GlobalStraling);
TQTable2018 = Time(timerange('2018-01-01', '2018-12-31'), :);