MATLAB: Creating Bins in a Histogram

histogramplotplotting

I have a data set with the first column being the years and the second column being the distances. I need to create a histogram that bins how many of these distances occur during the same year, and then occurring every 10 years. (For example, 1880-1890 0, 1890-1900 1, 1900-1910 1).
I have attached the text file.

Best Answer

You have one year recorded for each distance, so do the histogram on the years. This doesn’t account for the distances (I’m not exactly certain how to fit them into a histogram by year in the absence of plot3, if you want to somehow include them), but will plot the histogram of the discoveries by year and decade.
The code:
fidi = fopen('jgillis16 oo20copy.txt', 'rt');
Dc = textscan(fidi, '%f%f', 'CollectOutput',1, 'TreatAsEmpty','~');
fclose(fidi);
D = cell2mat(Dc);
years = D(:,1);
distances = D(:,2);
yrbin = [min(years):max(years)]-0.5;
dcbin = 10*[floor(min(years)/10) : 1 :  floor(max(years)/10)]+5;
figure(1)
subplot(2,1,1)
hist(years, yrbin)
grid
subplot(2,1,2)
hist(years, dcbin)
grid
Related Question