Perfect, thank you Danny! On Mon, Dec 8, 2014 at 3:49 PM, Danny Yoo <d...@hashcollision.org> wrote:
> On Mon, Dec 8, 2014 at 7:48 AM, Colin Ross <colin.ross....@gmail.com> > wrote: > > Good afternoon, > > > > I am using the following to code to plot the output from an optical > encoder: > > Hi Colin, > > Matplotlib is a third-party library, so you may also consider asking > the matplotlib folks. > > From a brief look at: > > > http://matplotlib.org/1.4.2/users/pyplot_tutorial.html#working-with-multiple-figures-and-axes > > it appears that you can override the default axis, and specify xmin, > ymin, xmax, and ymax values. > > http://matplotlib.org/1.4.2/api/pyplot_api.html#matplotlib.pyplot.axis > > For your particular case, you may want to just limit your x axis, in > which case xlim() might be appropriate. > > http://matplotlib.org/1.4.2/api/pyplot_api.html#matplotlib.pyplot.xlim > > > If all else fails, just filter your data before submitting it to the > grapher. The program loads data here, using loadtxt > (http://docs.scipy.org/doc/numpy/reference/generated/numpy.loadtxt.html): > > data = np.loadtxt('2014_12_04-16_30_03.txt',skiprows = 0 ,usecols = > (0,1)) > > and it's just a numpy array: you can manipulate numpy arrays. See: > > > http://stackoverflow.com/questions/26154711/filter-rows-of-a-numpy-array > > as an example of an approach. >
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