function [MM] = validateTfunction2 (M)

year = M (:,1);
month = M (:,2);
day = M (:,3);
hour = M (:,4);

ws = M (:,6);


i = find(ws < 20);
w = ws(i);
w(isnan(w)) = [];
w(any(isnan(w),2),:) = [];

MM = [year(i), month(i), day(i), hour(i), w];

% 
% 
% yeari = MM (:,1);
% monthi = MM (:,2);
% dayi = MM (:,3);
% houri = MM (:,4);
% mini = MM (:,5);
% 
% wsi = MM (:,6);
% wdi = MM (:,7);
% 
% 
% i = find(wdi < 101);
% wi = wsi(i);
% wi(isnan(w)) = [];
% wi(any(isnan(wi),2),:) = [];
% 
% MMM = [yeari(i), monthi(i), dayi(i), houri(i), mini(i), wi, wdi(i)];
% 
end