I am just starting to use 'matplotlib' and I have hit upon 2 major roadblocks, which I can't seem to work around from the docs/examples,etc: Here is Python source: #!/usr/bin/python import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt for i in range(0,301): print "Plotting",i # Reading a single column data ...
Hi, I want to dynamically update the scatter plot based on the y-axis data received from a socket connection. I used python matplot lib in interactive mode to do this, but during dynamic updation if i move the window to a different location or minimize the window then the plot updation stops abruptly. Please let me know how to do this? ...
Hello, i am using a Matplotlib figure as widget, in a PyQt4 programm. Everything works, except "set_autoscale_on(False)". Everytime i call a figure axes to plot something, it forgets its autoscale status. Here some code, with axs a subplot of a figure: print axs.get_autoscale_on() print axs.get_autoscaley_on() p...
Is there a way to change the color of an axis (not the ticks) in matplotlib? I have been looking through the docs for Axes, Axis, and Artist, but no luck; the matplotlib gallery also has no hint. Any idea? ...
I want to plot a confusion matrix using Pylab. The class labels along the horizontal axis are long, so I want to plot them rotated vertically. However, I also want to plot them on top of the axis, not below. This command can plot vertical labels on bottom: pylab.imshow(confusion_matrix) pylab.xticks(..., rotation='vertical') and this...
Hello... anyone know how to draw a border around an individual subplot within a figure in matplotlib? I'm using pyplot. eg: import matplotlib.pyplot as plt f = plt.figure() ax1 = f.add_subplot(211) ax2 = f.add_subplot(212) # ax1.set_edgecolor('black') ..but Axes objects have no 'edgecolor', and I can't seem to find a way to outline ...
I've got a series of (x,y) values that I want to plot a 2d histogram of using python's matplotlib. Using hexbin, I get something like this: But I'm looking for something like this: Example Code: from matplotlib import pyplot as plt import random foo = lambda : random.gauss(0.0,1.0) x = [foo() for i in xrange(5000)] y = [foo() for i ...
I am plotting Cumulative Distribution Functions, with a large number of data points. I am plotting a few lines on the same plot, which are identified with markers as it will be printed in black and white. What I would like are markers evenly spaced in the x-dimension. What I am getting is one marker per data point (and given the number o...
I am new to python. I have installed Matplotlib. I have created 2 lists x and y. I want X axis to have values from 0 to 100 in steps of 10 and Y axis to have values from 0 to 1 in steps of 0.1. How do I plot this graph? ...
I while ago, I was comparing the output of two functions using python and matplotlib. The result was as good as simple, since plotting with matplotlib is quite easy: I just plotted two arrays with different markers. Piece of cake. Now I find myself with the same problem, but now I have a lot of pair of curves to compare. I initially tri...
I have a scatter plot graph with a bunch of random x,y coordinates. Currently the Y-Axis starts at 0 and goes up to the max value. I would like the Y-Axis to start at the max value and go up to 0. points = [(10,5), (5,11), (24,13), (7,8)] x_arr = [] y_arr = [] for x,y in points: x_arr.append(x) y_arr.append(y) plt.scatter(x_...
I return a chart image (with axis x and y) to the browser created my matplotlit. Now I want to show the axis values when there is mouseover event. ...
I write scientific software in Numpy/Scipy/Matplotlib. Having developed applications on my home computer, I am now interested in writing simple web applications. Example: user uploads image or audio file, my program processes it using Numpy/Scipy, and output is displayed on the browser using Matplotlib, or perhaps the user can download a...
I have installed networkx and matplotlib packages. How can I generate a power law graph based on degree correlation i.e. graphs with high or low degree of homophily ...
So I'm representing a token ring network (doing the simulation in SimPy), I'm a totally newbie to matplotlib, but I was told that it'd be really good for representing my simulation visually. So I googled around and found out how to draw shapes and lines - using add_patch and add_line respectively to the axes (I believe). So now I have t...
Hello all, I try to plot some curves with matplotlib using the default gui component and have some trouble to select which of the two y-axes that the mouse over functionality should select. The default case seems to be that ax2 gets selected but I would like to use ax1 instead. Is this possible to fix in some easy way? This is the cod...
I just installed matplotlib in Ubuntu 9.10 using the synaptic package system. However, when I try the following simple example >>> from pylab import plot; >>> plot([1,2,3],[1,2,3]) [<matplotlib.lines.Line2D object at 0x9aa78ec>] I get no plot window. Any ideas on how to get the plot window to show? ...
To annotate my figures with Greek letters in the matplotlib package of Python, I use the following: import matplotlib matplotlib.use('PDF') import matplotlib.pyplot as plt from matplotlib import rc rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']}) plt.rcParams['ps.useafm'] = True rc('font',**{'family':'sans-serif','sans-se...
Hi All, I'm trying to plot a figure without tickmarks or numbers on either of the axes (I use axes in the traditional sense, not the matplotlib nomenclature!). An issue I have come across is where (for example) matplotlib adjusts the x(y)ticklabels by subtracting a value N, then adds N at the end of the axis. This may be vague, but the...
I am trying to create bar graphs of letter frequency in Python. I thought the best way to accomplish this would be matplotlib, but I have been unable to decipher the documentation. Is it possible to label the bars of a matplotlib.pyplot.hist plot with one letter per bar, instead of a numerical axis? I think it must be, but I have not use...