Hi Is there a way to print values calculated by a script directly into the plot that is being made?
For example say I have a data file that I read in. Then I want to calculate the total number of entries, the sum of the entries, the average and standard deviation. How can I then print these vales right on to the histogram that I then plot?
I looked here http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.text, but it was not very helpful. Thanks in advance
file = 'myfile.txt' d = np.loadtxt(file) C = d[:,3] S = sum(C)) avg = np.mean(C) sigma = np.std(C) N = len(C)
I tried this but it did not work
n, nbins, patches = plt.hist(C, 20) plt.title("My Histogram") plt.text(0,0, 'Sum of vales ='S '\n' 'Total number of entries = ' N '\n' 'Avg= 'avg '\n' 'Standard Deviation = ' sigma) ply.show()
I think you forget to call
I chat with OP in comments. It turns out that the problem is
syntax error. His original code
plt.text(0,0, 'Sum of vales ='S '\n' 'Total number of entries = ' N '\n' 'Avg= 'avg '\n' 'Standard Deviation = ' sigma)
He try to concat string in this way
'some string' variable 'another string'. He ask me why
'some string' ' another string' is OK, because Python automatically join adjacent strings into one single string. In this case, he gets
'some string another string', which is a valid python statement.