I am trying to format my graph so that the border ends at the max x and max y so there is not extra space between them and the border. Also, I'm trying to completely replace my first plot command with my second one. Should I just delete my first plot? Currently, the second plot goes over my first plot, removing most of my formatting.
clear all, close all
%%command to clear all variables and log history
x = linspace(-pi, pi, 200);
%creating x variable between - pi and 200 with pi distance between each
%value
y = sin(x) + cos(x);
%Creating y varable with the help of x
figure
plot(x,y)
title('2-D Plot')
xlabel('Theta (in radians)')
ylabel('Function Y')
xlim([-pi pi])
ylim([-1.414 1.414])
grid
plot(x,y,'r--')
grid
To fit the axes box tightly around the data without manually adjusting the axis limits, use:
axis tight;
and instead of re-plotting, you can update the relevant properties of the line.
x = linspace(-pi, pi, 200);
y = sin(x) + cos(x);
figure;
h = plot(x,y); %handle for the line plot
title('2-D Plot');
xlabel('Theta (in radians)');
ylabel('Function Y');
grid;
axis tight; %to set the axis limits equal to the range of the data
set(h, 'LineStyle', '--', 'Color', 'r'); %Updating the plot with required changes
I have a surf plot, in which I would like to have two y-axes. I cannot seem to find any other discussion quite like this.
The closest I got so far is:
surf(peaks);
view(0,0)
ax(1) = gca;
axPos = ax(1).Position;
ax(2) = axes('Position',axPos, 'Color', 'none','XTick',[],'ZTick',[],'YAxisLocation','right');
linkprop(ax, 'CameraPosition');
rotate3d on
% Desired plot
surf(peaks);
% Save axis
ax(1) = gca;
% Use the position of the first axis to define the new axis
pos = ax(1).Position;
pos2 = pos - [0.08 0 0 0];
ax(2) = axes('Position',pos2,'Color', 'none');
% Plot random line in 3D, just make sure your desired axis is correct
plot3(ones(length(peaks),1), 10:10:length(peaks)*10,...
ones(length(peaks),1), 'Color','none')
% Make plot, and non-desired axes, invisible
set(gca,'zcolor','none','xcolor','none','Color','none')
% Link axes
linkprop(ax, 'View');
I have the following graph in Matlab:
I have tried using 'xTick' and 'yTick' to make the axis on each subplot the same, but it's not accomplishing what I would like it to. I also want the both axes of each subplot to share the same range so that I can easily compare the graphs. (i.e. ranging from 0 - 20, in y, and 0 - 400 in x).
I'm not sure how to change this.
My attempt is below. Does anyone know how to do this?
figure()
hold on
subplot (1,2,1);
% xlim([0 400]);
% ylim([0 25]);
graph_made = [num_calls_made];
plot (graph_made);
title('Number of calls made')
xlabel('ID Number of caller');
ylabel('Number of calls');
set(gca, 'XTick', [0:100:400]);
set(gca, 'YTick', [0:5:20]);
subplot (1,2,2);
graph_rec = [num_calls_received];
plot (graph_rec);
title('Number of calls received')
xlabel('ID Number of caller');
ylabel('Number of calls');
set(gca, 'XTick', [0:100:400]);
set(gca, 'YTick', [0:5:20]);
hold off
If you want the axes limits to stay linked as a user interactively zooms or pans, you can also use the linkaxes command...
subplot(1,2,1)
% your plotting code here...
ax = gca; %get the handle to the current axis
subplot(1,2,2)
% your plotting code here...
ax(end+1) = gca; %get the handle to the current axis
linkaxes(ax); %this will link both the x and y axes.
XTick and YTick only change where the labels on axes go, not the limits of the axes. To change those, you have to use axis (or xlim and ylim):
axis([0 400 0 20]) %// [xmin xmax ymin ymax]
I am plotting two maps next to each other using subplot. However, now, the image is turning out like this:
Is there any way to make the map part of the image larger? I would like to plot the maps side by side, by in this image, the resolution is low and the size is small.
%% Graph one site at a time
nFrames = 6240; % Number of frames.
for k = 94:nFrames
h11 = subplot(1,2,1); % PM2.5
% Map of conterminous US
ax = figure(1);
set(ax, 'visible', 'off', 'units','normalized','outerposition',[0 0 1 1]);
ax = usamap('conus');
set(ax,'Position',get(h11,'Position'));
delete(h11);
states = shaperead('usastatelo', 'UseGeoCoords', true,...
'Selector',...
{#(name) ~any(strcmp(name,{'Alaska','Hawaii'})), 'Name'});
faceColors = makesymbolspec('Polygon',...
{'INDEX', [1 numel(states)], 'FaceColor', 'none'}); % NOTE - colors are random
geoshow(ax, states, 'DisplayType', 'polygon', ...
'SymbolSpec', faceColors)
framem off; gridm off; mlabel off; plabel off
hold on
% Plot data
scatterm(ax,str2double(Lat_PM25{k})', str2double(Lon_PM25{k})', 25, str2double(data_PM25{k})', 'filled');
% Colorbar
caxis([5 30]);
h = colorbar;
ylabel(h,'ug/m3');
% Title
title(['PM2.5 24-hr Concentration ', datestr(cell2mat(date_PM25(k)), 'mmm dd yyyy')]);
%%%%
h22 = subplot(1,2,2); % O3
% Map of conterminous US
ax2 = usamap('conus');
set(ax2,'Position',get(h22,'Position'));
delete(h22);
states = shaperead('usastatelo', 'UseGeoCoords', true,...
'Selector',...
{#(name) ~any(strcmp(name,{'Alaska','Hawaii'})), 'Name'});
faceColors = makesymbolspec('Polygon',...
{'INDEX', [1 numel(states)], 'FaceColor', 'none'}); % NOTE - colors are random
geoshow(ax2, states, 'DisplayType', 'polygon', ...
'SymbolSpec', faceColors)
framem off; gridm off; mlabel off; plabel off
hold on
% Plot data
scatterm(ax2,str2double(Lat_O3{k})', str2double(Lon_O3{k})', 25, str2double(data_O3{k})'*1000, 'filled');
hold on
% Colorbar
caxis([10 90]);
h = colorbar;
ylabel(h,'ppb');
% Title
title(['O3 MDA8 Concentration ', datestr(cell2mat(date_O3(k)), 'mmm dd yyyy')]); % Title changes every daytitle(str);
% Capture the frame
mov(k) = getframe(gcf); % Makes figure window pop up
% Save as jpg
eval(['print -djpeg map_US_' datestr(cell2mat(date_PM25(k)),'yyyy_mm_dd') '_PM25_24hr_O3_MDA8.jpg']);
clf
end
close(gcf)
To change the amount of space the data occupies in the figure, you can use this command:
set(gca,'Position',[0.1 .1 0.75 0.85])
You'll have to play with the numbers a bit, to get things look nice. Note that Matlab rescales everything when you resize the figure window, so the optimal numbers depend on the window size you want to use.
On the other hand, you want to make the map bigger in comparison to the colorbar. You cannot make it without changing your window size, because your maps are already as high as the color bars. I would suggest to:
Set caxis to the same range in both plots.
Remove the colorbar on the left one.
Increase the height of your figure window to make the maps occupy as much width as possible.
Put the two images nicelye side by side using the command above.
For more information, see Matlab Documentation on Axes Properties.
Example:
% Default dimenstions
figure
x = 1:.1:4;
y = x;
[X, Y] = meshgrid(x,y);
subplot(1,2,1)
h = pcolor(X, Y, sin(X).*cos(Y)*2);
set(h, 'EdgeAlpha', 0);
axis square
colorbar
subplot(1,2,2)
h = pcolor(X, Y, sin(Y).*cos(X));
set(h, 'EdgeAlpha', 0);
axis square
colorbar
% adjust dimensions
subplot(1,2,1)
set(gca, 'Position', [0.1 0.1 0.3 0.85])
subplot(1,2,2)
set(gca, 'Position', [0.55 0.1 0.3 0.85])
This blog post has many great examples of FileExchange scripts dealing with size of subplots.
subplot_tight works very well and makes the subplots larger. Instead of writing in subplot(1,2,1), use subplot_tight(1,2,1)
My problem was similar -> scaling subplots in a figure a bit more up. Important for me though, was to maintain the aspect ratio that I've set before.
Enhancing the answer from #texnic in order to not have to set the values manually, one might use the following:
scale = 1.1; % Subplot scale
subplot(1,2,1)
% Your plotting here ...
pos = get(gca, 'Position'); % Get positions of the subplot [left bottom width height]
set(gca, 'Position', [pos(1) pos(2) pos(3)*scale pos(4)*scale]); % Scale width and height
Understanding this, one can also easily implement a parametric move of the subplot.
I need to plot a x-y function, that shows the histograms at x-values. Something similar to the bottom plot of the next figure:
I tried to use matlab's "barh", but can't plot many in the same figure.
Any ideas?
Or, maybe displacing the origin (baseline, basevalue in barseries properties) of successive plots would work. How could I do that for barh?
thanks.
Using 'Position' of axes property
% generate "data"
m = rand( 40,10 );
[n x] = hist( m, 50 );
% the actual plotting
figure;
ma = axes('Position',[.1 .1 .8 .8] ); % "parent" axes
N = size(n,2); % number of vertical bars
for ii=1:N,
% create an axes inside the parent axes for the ii-the barh
sa = axes('Position', [0.1+(ii-1)*.8/N, 0.1, .8/N, .8]); % position the ii-th barh
barh( x, n(:,ii), 'Parent', sa);
axis off;
end