Matplotlib doesn't show my graph (using vim)

Question

I'm having a problem with matplotlib. I'm using the linux Chrome OS distro. When I try to creat a graph, it doesn't show me anything, just this: Graph

This is the script:

import matplotlib.pyplot as plt
 
x = [10,20,30,40,50,60]
bin = [10]
plt.hist(x,bin)
plt.show()

My IDE is Vim

Answer 1

This happened because you supplied the wrong argument to plt.hist. According to the documentation:

bins : int or sequence or str, default: :rc:`hist.bins`
    If *bins* is an integer, it defines the number of equal-width bins
    in the range.

    If *bins* is a sequence, it defines the bin edges, including the
    left edge of the first bin and the right edge of the last bin;
    in this case, bins may be unequally spaced.  All but the last
    (righthand-most) bin is half-open.  In other words, if *bins* is::

        [1, 2, 3, 4]

    then the first bin is ``[1, 2)`` (including 1, but excluding 2) and
    the second ``[2, 3)``.  The last bin, however, is ``[3, 4]``, which
    *includes* 4.

    If *bins* is a string, it is one of the binning strategies
    supported by `numpy.histogram_bin_edges`: 'auto', 'fd', 'doane',
    'scott', 'stone', 'rice', 'sturges', or 'sqrt'.

So by supplying [10], you haven't supplied the end of a bin, only the start, and nothing is generated. You can fix this with plt.hist(x,10) or plt.hist(x, [10, 20, 30 <rest>]).

In addition, try to avoid overwriting builtin functions like bin. It won't affect you now, but might haunt you later.