Problem with Y axis range in percentage

Hello, I am having problem with the range of my Y-axis. The range of my data is 50 to 100% but the setting of my Y-axis only allows for the value of each data to be capped at 75 for some reason. How do I get the graph to show data from 50-100% instead of being capped at 75 as shown in the picture below. Any help would be deeply appreciated.

Ebat(1)=18; %the battery rated capacity is 36kWh

Pgrid(1)=Pavg(1);

Pbat(1)=Plg(1)-Pgrid(1);

for i=2:length(Plg)

Ebat(i)=Ebat(i-1)-Pbat(i-1)/4; %battery estimator

if Ebat(i)>=Cbat_max||Ebat(i)<=0 %block used to avoid over-charge

Pgrid(i-1)=Plg(i-1); %block used to avoid over-discharge

Pbat(i-1)=0;

Ebat(i)=Ebat(i-1);

end

Pgrid(i)=Pavg(i);

Pbat(i)=Plg(i)-Pgrid(i);

end

SOC=(50/36)*Ebat+50;

k=[1:length(Plg)];

plot(k,SOC)

y_pct_lbl = [50 60 70 80 90 100]; % Desired Labels

yt_orig = get(gca, 'YTick'); % Original Y-Tick Values & Labels

yt_new = linspace(min(yt_orig), max(75), numel(y_pct_lbl)); % New Y-Tick Values

yt_lbl = regexp(sprintf('%d %%\n', y_pct_lbl), '\n', 'split'); % New Y-Tick Labels

set(gca, 'YTick',yt_new, 'YTickLabel',yt_lbl(1:end-1))

t=1:29664;

set(gca,'xtick',linspace(t(1),t(end),12))

month = {'Jul','Aug','Sep','Oct','Nov','Dec','Jan','Feb','Mar','Apr','May','Jun','Jul'};

xticklabels(month)

Answer 1

[Michael Soskind]

Hi Jordan,

Look like you have the following line in your code:

yt_new = linspace(min(yt_orig), max(75), numel(y_pct_lbl));                 % New Y-Tick Values

max(75) seems to be the limiting factor here, you should be able to replace that with

yt_new = linspace(min(yt_orig), 100, numel(y_pct_lbl));                 % New Y-Tick Values

Hope that solves your question,

Michael

[Jordan Michael Flynn]

I already did that but it changes the range of the Y-axis from 50 to 75. it's no longer using the set range of 50 to 100%

[Michael Soskind]

In general, there is also the scaling that you perform in the following line of code:

SOC=(50/36)*Ebat+50;

Depending on the range of Ebat, this is what will give you the limits from the calculation. So if Ebat has a max of 36, that equation works well, if it has a max of 18, then you will get the range up to 75. Without the data, it is a bit hard to know if that scaling is causing this problem or not.

[Michael Soskind]

Also, it could be that you are looking for the more general solution that was provided here.

In general, 'YTick' and 'YLim' are what I would think you would need.