def histogram(neuron, feature, ax, bins=<NUM_LIT:15>, normed=True, cumulative=False):
feature_values = nm.get(feature, neuron)<EOL>ax.hist(feature_values, bins=bins, cumulative=cumulative, normed=normed)<EOL>
Plot a histogram of the selected feature for the population of neurons.
Plots x-axis versus y-axis on a scatter|histogram|binned values plot.

Parameters :

    neurons : neuron list

    feature : str
    The feature of interest.

    bins : int
    Number of bins for the histogram.

    cumulative : bool
    Sets cumulative histogram on.

    ax : axes object
        the axes in which the plot is taking place