This should have taken five minutes.
Url = 'http://service.iris.edu/irisws/timeseries/1/query?net=AV&sta=DLL&cha=HDF&start=2011-01-01T00:00:00&end=2011-01-01T00:03:00&scale=AUTO&format=ascii1&loc=03';
Text = webread(Url);
Lines = strsplit(Text,'\n');
N = length(Lines) - 1;
values = zeros(1,N,'double');
for i = 1:N
values(i) = str2double(Lines{i+1});
end
figure('name','first');
plot(1:N-1,diff(values,1));
figure('name','second');
plot(1:N-2,diff(values,2));
figure('name','third');
plot(1:N-3,diff(values,3));
figure('name','fourth');
plot(1:N-4,diff(values,4));
figure('name','Raw');
plot(1:N,values);
---------
windows 7 64bit professional.
It is a trivial problem. Read the data from IRIS, split into lines, extract the first column (only one column), plot the first 4 differences, plot the raw data.
But it keeps putting the figures into the code in the live editor. I have been running other things all day where the figures come up on my other screen.
Yes, I cleared command, output, workspace. Exit and return. All the usual. Some damn convention some made up and the passed along as verbal history. Horrible trying to find anything online. Yes, I like talking to people, but I hate having to ask a human for every tiny little bit of what did someone make up for this situation.
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I tried this below and it would not plot anything and gave no error messages.
for k = 1:4
figure(k);
plot(1:N-k,diff(values,k));
end
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Going to the output and manually opening leaves the figures on the screen, but running again won't update those figures. It keep shoving them into the output area next to the live editor. I know this is trivial and stored in someone's head. I hate memorizing stuff like this. And it is impossible to search for. There has to be a better way.
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I went through the 130,142 files and 14,031 folders in my Program Files/MATLAB folder to see how it is organized. It is a jumble of 207 different extensions, several that are ambiguous. Most of it hand built. Many automated files in text and binary with no map as to how they are connected. Fragmenting things into so many pieces means file access is slow. It needs to all be in a database, indexed and mapped. All these data files and no organization. No wonder ever trivial question takes hours because all the answers are in people's heads or written in incomplete human to human text.
