Creating a specific time subplot

Hello

Im plotting time and wave height and im trying to plot a graph shpwing yearly trends but highlighting February and march and then a subplot of just february and march. So far I have highlighted the two months in different olours (trying to make them both red) and my subplot just shows march.

figure(1)

for m=1:12

V.H.Time = data{1,m}{1,1}(:,1);

V.H.Hm0 = data{1,m}{1,2}(:,6);

subplot(2,1,1)

plot(V.H.Time,V.H.Hm0)

hold on

plot(V.H.Time,V.H.Hm0, 'k') %keep one figure open and add extra data open (stops multiple figures)

hold on

m=4

V.H.Time = data{1,m}{1,1}(:,1);

V.H.Hm0 = data{1,m}{1,2}(:,6);

plot(V.H.Time,V.H.Hm0)

m=8

V.H.Time = data{1,m}{1,1}(:,1);

V.H.Hm0 = data{1,m}{1,2}(:,6);

plot(V.H.Time,V.H.Hm0)

plot(V.H.Time,V.H.Hm0, 'r')

datetick('x','mmm','keeplimits')

hold on

subplot(2,1,2)

m=4

plot(V.H.Time,V.H.Hm0)

m=8

plot(V.H.Time,V.H.Hm0)

hold on

plot(V.H.Time,V.H.Hm0, 'r')

datetick('x','mmm','keeplimits')

end

Answer 1

[VBBV]

    %hold on.  Comment this line
    subplot(2,1,2)

Comment the line above

[Rachel Cox]

I'm unsure what this means

Answer 2

[Seth Furman]

To color each month, you can use stackedplot and provide multiple timetables

https://www.mathworks.com/help/matlab/ref/stackedplot.html

tt = timetable(datetime(2022,1,1)+hours(0:24*365-1)',cos(linspace(0,2*pi,24*365)'+randn(24*365,1)/10))

tt = 8760×1 timetable
            Time             Var1  
    ____________________    _______

    01-Jan-2022 00:00:00     0.9978
    01-Jan-2022 01:00:00    0.99909
    01-Jan-2022 02:00:00    0.98911
    01-Jan-2022 03:00:00    0.98734
    01-Jan-2022 04:00:00    0.99889
    01-Jan-2022 05:00:00     0.9869
    01-Jan-2022 06:00:00    0.99972
    01-Jan-2022 07:00:00    0.98416
    01-Jan-2022 08:00:00    0.95042
    01-Jan-2022 09:00:00    0.99574
    01-Jan-2022 10:00:00    0.99892
    01-Jan-2022 11:00:00     0.9827
    01-Jan-2022 12:00:00    0.99661
    01-Jan-2022 13:00:00    0.99449
    01-Jan-2022 14:00:00    0.99796
    01-Jan-2022 15:00:00    0.99166

janToMarch = tt(1 <= tt.Time.Month & tt.Time.Month <= 3,:);
aprilToJune = tt(4 <= tt.Time.Month & tt.Time.Month <= 6,:);
sp = stackedplot(janToMarch, aprilToJune);

then use colororder

https://www.mathworks.com/help/matlab/ref/colororder.html

colororder(sp, ["black","#EDB120"]);

To create multiple subplots, you can use tiledlayout

https://www.mathworks.com/help/matlab/ref/tiledlayout.html

months = cell(1,12);
for i = 1:numel(months)
    months{i} = tt(tt.Time.Month == i,:);
end

tl = tiledlayout(2,1);
nexttile;
stackedplot(months, LegendVisible="off");
nexttile;
stackedplot(months(2:3), LegendLabels=["February","March"]);