I want to plot a histogram of frequency of eruptions based on the years.
However, the data provided is not so simple. It has year in the form of BCE and CE, along with "unknowns". I want to get rid of the unknowns and count the number of eruptions. However, I cannot read the data as an integer/etc as there are strings in it. "500 CE" and "205 BCE" for example. Is there a way to plot the histogram accounting for such data? I have attached a photo of the data sample in the link.
So far, what I have is
% Locating the index for unknowns
ridunknowns = find(strcmp('Unknown',eruptyear)); % Changing the values of Unknowns to NaN in the vector
eruptyear([ridunknowns]) = {NaN};
Best Answer