# how to plot each bin of data individually?

8 views (last 30 days)
MA on 17 Oct 2021
Commented: MA on 19 Oct 2021
I am having the follwoing issues:
I have a table with three variables: time in hours, altitude and solar activity, according to a time interval of 3hrs I have divided my data into 8 bins using the function discretize.
How can we plot the data within each bin indiviually, i.e we have 8 bins we would like to have a graph for each bin, that is for each interval of time, so at the end we get 8 graphs.
in the plot the data of each row sholud be presented for ex by a dot.
attached is a text file containing a sample of the data I am working with.

dpb on 17 Oct 2021
As per usual, would be easier to demonstrate with some real data to work with...but
tD=table(repmat([0:23].',4,1),randi([150 200]*1000,96,1),randi([10 70],96,1),'VariableNames',{'Hours','Altitude','Activity'});
tD.Bin=discretize(tD.Hours,8);
splitapply(@(x,y) plot(x,y,'*'),tD.Altitude,tD.Activity,tD.Bin)
xlabel('Altitude, ft')
ylabel('Activity, units')
tCenter=[1.5:3:24]; % bin time centers 0-3, 3-6, 6-9, ...
legend(compose('Time Bin %4.1f hrs',tCenter.')) % label by the group time centers
might be a fair starting point...
MA on 18 Oct 2021
What I mean is that the plot here will display all the bins together in one plot. But what if we are interested in visualizing only the data within a certain bin. since the bins we have represents intervals of time, we would like the plot to plot only one specified bin i.e specified interval of time. would that be possible?

dpb on 18 Oct 2021
OK, here's another example; I'll add it as its own Answer -- carrying on from the above
uBin=unique(tD.Bin);
for i=uBin(:).'
nexttile
isBin=(tD.Bin==i);
scatter(tD.NE8(isBin),tD.GDALT(isBin),'.')
legend("Bin "+i,'Location','best')
xlabel('NE, units'),ylabel('GDALT, ft')
box on
end
MA on 19 Oct 2021
That is exactly what I am after, I really appreciate all the help you provided, thank you so, so much.

Steven Lord on 18 Oct 2021
Can you tell us which of the thumbnail pictures for the plotting functions included in MATLAB look closest to what you want to plot? If none of them do and you have other MathWorks toolboxes installed, open the Plots tab on the Toolstrip and see if any of the functions from a toolbox have thumbnails that look closer (maybe a boxplot from Statistics and Machine Learning Toolbox?)
MA on 19 Oct 2021
Thank you for the advice, I will definitely check them out.

R2021b

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