During my work, I got the figure shown below
It is clear that it turns out to be a mess below 5 on the y-axis. What I want to do, is to "expand" the y-axis only in the range from 3 to 5 such that the lines are separated and can be clearly distinguished.
I tried using set(gca, 'Xtick', [0 1 2 3:.5:5 5:25]) but this didn't help at all.
Any hint is appreciated.
What I got is as shown in the figure below:
Since I am getting my data through iterative loops and even sub-loops, I couldn't manage to get the desired figure using "inset plot", it got so complicated. However, what I did is simply that I had two MATLAB figures, the original one and another copy of it with a zoom-in of the y-axis from 3.5 to 5, then I copied the zoomed one to the original one and that's it.
This practice is better than using power point or paint to get the figure since doing so in MATLAB gives MUCH more flexibility in terms of editing the two figures, resizing them, axes labeling and so on.
Hope this would help someone else.
Related
I have 2 figures generated that show a 3D cube, and one that shows a net. I have associate these with two axes in a GUI using this:
axes(handles.cube);
axes(handles.net);
What I do not understand is how to transfer the figure into each one.
This is probably very simple, I'm very new and very inept with this piece of software- so any advice is greatly appreciated.
I am not sure if this is what you are looking for, but you can use subplot for plotting two different axes in one window, if this is what you desire:
https://de.mathworks.com/help/matlab/examples/displaying-multiple-plots-in-a-single-figure.html
I am currently trying to use spectral-methods to analyse topographic landscapes.
When i FFT the landscape and plot the power-spectrum. From the power-spectrum an orientation of the structures in the landscape can be found.
2D power-spectrum:-
In this power-spectrum, i would like to make a cross-section.
This is easy when the peak amplitude orientation is along the x or y-axis.
But for this area (and others), this is not the case.
Cross-section from another area - orientated along the y-axis:-
My problem is i want to make a cross-section along the peaks in 1, and i just cant seem to figure it out how.
If anyone could point me towards some solution for this. Been stuck here for a couple of days now.
Edit 1
I would like the cross-section, to be a line along the peak orientation.
Edit 2
Improved the first image to show where i want my cross-section
My solution was, as GameOfThrows suggested:
Pick 2 (or more) points on the orientation i want
used Least squares on the points to create the line
Setup a meshgrid for the interpolation.
Use the interp2 function on the new line.
define a proper axis for the section
In my final cross section i ended up having multiple lines in it, that way i was sure to hit the max amplitudes.
i was a little with the answer to my question, but i have been busy :)
You can use ginput built-in matlab function to store 2 (x,y) coordinates of your power spectrum and then use this values to delimit a profile to be interpolated.
I am running a simulation in Matlab 2015 which creates data each round, so I am plotting a number of single errorbar series individually. Here's a sample code and the output plot:
figure
xlim([0 30])
hold on
errorbar(1,2.0,1.9,16.5,'x')
errorbar(15,2.0,1.9,16.5,'x')
errorbar(25,2.0,1.9,16.5,'x')
errorbar(10,2.0,1.9,16.5,'x')
errorbar(30,2.0,1.9,16.5,'x')
errorbar(5,2.0,1.9,16.5,'x')
errorbar(20,2.0,1.9,16.5,'x')
The weirdness is that the whisker length appears to be dependent on my X value. As you can see it increases from left to right, even though I did not plot them from left to right. The single-sided width of each whisker is 0.01*x.
Why is this happening, and how can I fix it? This doesn't seem like intended functionality. Ideally I would just manually set the width of each whisker, but I can't find a way to do that. There was a function posted on the MFX a while back, but that was made for R2007b and no longer works. The errorbar series properties do not give any indication that the whiskers can even be affected at all. Any help here would be greatly appreciated!
I have a set of data that I plot but the points on the graphs are so closed to each other that you can't see them well nd neither their values because even when I zoom in I can't get to them all. Now what I want to do is to space them out without changing their actual values on the graph. Is the a function or any other ways to do that? I've tried changing the axis and the scale but it didn't help. Mostly those points are in the Y direction. Please help What I really mean is though these points are closed to each other I'd like to create and interval between them so they don't pile up on each other
You can make the vector you are trying to plot to be more sparse taking points after some defined intervals:
plot(x(1:10:end),y(1:10:end))
In this example, I plotted each tenth point. Does it help?
If I zoom several time graph all labels from axis X disapear (go away) and there are no visible axis X labels so it is not possible to understand the part of graph where am I.
How can I force matlab to always display labels on axis X and to update them automatically while zooming and to display enough digits so "neighboor" labels must be different.
it depends, are you manually setting the tick marks yourself ('XTick' and 'XTickLabel' axis properties)?
Try this simple example
plot(sin(1:10), 'o-')
without changing anything, you can zoom as much as you want, and the tick labels will always be visible
EDIT
The root cause of the problem is the same as the one raised in your other question, datetick function will manually set the tick labels, thus disabling automatic update on zoom/pan.
The good news is there are already submissions on FEX that tries to solve this exact problem with DATETICK
I run into the same problem even on the new version of MATLAB (r2014). MATLAB does not display sufficient x-axis tick labels as you zoom-in. After several experiments I found the following workaround. Following is a plot before implementing the solution. MATLAB displays only three XTick labels on the x-axis even though there is sufficient space for more (there are often even less labels as you zoom in more).
Suspecting that MATLAB thinks that it does not have sufficient space to display more labels, a workaround can be to rotate the labels. To do that, after you issue the plot commands, e.g.
plot(tsX);
hold on;
plot(tsY);
plot(tsZ);
add the following command
set(gca,'XTickLabelRotation',90);
Now MATLAB plots with more labels
I am going to report this as a bug to the MATLAB guys.