how to write years in xtick.

sir i want to write years in xtick like this figure and also write R2 value in figure how can do this? please help.thank you in advance.

Answer 1

[Chad Greene]

If your x vector is in datenum format, you can use datetick('x','yyyy').

Answer 2

[Azzi Abdelmalek]

http://www.mathworks.com/matlabcentral/answers/103026-how-can-i-rotate-my-x-axis-tick-labels-and-place-an-x-label-on-my-plot

[ravi]

Thank you sir for giving answer but in this example shows months in xtick how can put here years.please help me sir.

[ravi]

sir i am trying this example but i am unable to this please help me how will set years in xtick like attached figure

[Azzi Abdelmalek]

I adapted the code from the previous link to plot x,y

% Generate some test data.  Assume that the X-axis represents months.
x = 1901:3:2003
y = 10*rand(1,length(x));
% Plot the data.
h = plot(x,y);
% Reduce the size of the axis so that all the labels fit in the figure.
pos = get(gca,'Position');
set(gca,'Position',[pos(1), .2, pos(3) .65])
% Add a title.
title('This is a title')
% Set the X-Tick locations so that every other month is labeled.
Xl = [1901 2003];
set(gca,'XTick',x,'XLim',Xl);
% Add the months as tick labels.
years=cellfun(@num2str,num2cell(x),'un',0)
ax = axis;    % Current axis limits
axis(axis);    % Set the axis limit modes (e.g. XLimMode) to manual
Yl = ax(3:4);  % Y-axis limits
% Place the teaxt labels
t = text(x,Yl(1)*ones(1,length(x)),years);
set(t,'HorizontalAlignment','right','VerticalAlignment','top', ...
    'Rotation',90);
% Remove the default labels
set(gca,'XTickLabel','')
% Get the Extent of each text object.  This
% loop is unavoidable.
for i = 1:length(t)
ext(i,:) = get(t(i),'Extent');
end
% Determine the lowest point.  The X-label will be
% placed so that the top is aligned with this point.
LowYPoint = min(ext(:,2));
% Place the axis label at this point
XMidPoint = Xl(1)+abs(diff(Xl))/2;
tl = text(XMidPoint,LowYPoint,'X-Axis Label', ...
        'VerticalAlignment','top', ...
        'HorizontalAlignment','center');

[ravi]

sir when i am adding your code in my code then years are perfectly plot in the figure but timeseries is not ploting(showing blank) because yaxis limit set 0 to 1.how can remove this fault from code

subplot(2,2,2);

yrs = linspace(1,86,86);

rainfall = y2;

b = polyfit(yrs,rainfall, 1);

fr = polyval(b, yrs);

plot(yrs, rainfall, '-b')

hold on

plot(yrs, fr, '-r')

hold off

h1 = legend('Data', 'Linear', 'Location','NE');

set(h1, 'FontSize',8)

[xlim ylim]

textposx = diff(xlim)*0.50+min(xlim);

textposy = diff(ylim)*0.95+min(ylim);

text(textposx,textposy, sprintf('y = %.2f*x %c %0.2f', b(1),

char(45-(sign(b(1))+1)), abs(b(2))), 'FontSize',8)

title(' CCSM4(rcp2.6) : hr')

xl = get(gca,'xlim')';

xt=linspace(xl(1),xl(2),2100-2015+1);

set(gca,'xtick',xt)

set(gca,'xticklabel',cellfun(@num2str,num2cell(2015:2100),'un',0))

xlabel('\fontname{Arial}Year','fontSize',10,'fontWeight','bold','FontName','Arial');

ylabel('\fontname{Arial}Rainfall(mm)','fontSize',10,'fontWeight','bold','FontName','Arial');

%text(0.6,0.85,'R2=-0.2580')

% Set the X-Tick locations so that every other month is labeled.

x = 2015:5:2100

Xl = [2015 2100];

set(gca,'XTick',x,'XLim',Xl);

% Add the months as tick labels.

years=cellfun(@num2str,num2cell(x),'un',0)

ax = axis; % Current axis limits

axis(axis); % Set the axis limit modes (e.g. XLimMode) to manual

Yl = ax(3:4); % Y-axis limits

% Place the teaxt labels

t = text(x,Yl(1)*ones(1,length(x)),years);

set(t,'HorizontalAlignment','right','VerticalAlignment','top', ... 'Rotation',90);

% Remove the default labels

set(gca,'XTickLabel','')

% Get the Extent of each text object. This

% loop is unavoidable.

for i = 1:length(t)

ext(i,:) = get(t(i),'Extent');

end

% Determine the lowest point. The X-label will be

% placed so that the top is aligned with this point.

LowYPoint = min(ext(:,2));

% Place the axis label at this point

XMidPoint = Xl(1)+abs(diff(Xl))/2;

tl = text(XMidPoint,LowYPoint,'Year','fontSize',10,'fontWeight','bold','FontName','Arial','VerticalAlignment','top','HorizontalAlignment','center');