Python pylab.rcParams() Examples

def plot_pairplots(data, labels, alpha, mis, column_label, topk=5, prefix='', focus=''):
    cmap = sns.cubehelix_palette(as_cmap=True, light=.9)
    plt.rcParams.update({'font.size': 32})
    m, nv = mis.shape
    for j in range(m):
        inds = np.where(np.logical_and(alpha[j] > 0, mis[j] > 0.))[0]
        inds = inds[np.argsort(- alpha[j, inds] * mis[j, inds])][:topk]
        if focus in column_label:
            ifocus = column_label.index(focus)
            if not ifocus in inds:
                inds = np.insert(inds, 0, ifocus)
        if len(inds) >= 2:
            plt.clf()
            subdata = data[:, inds]
            columns = [column_label[i] for i in inds]
            subdata = pd.DataFrame(data=subdata, columns=columns)

            try:
                sns.pairplot(subdata, kind="reg", diag_kind="kde", height=5, dropna=True)
                filename = '{}/pairplots_regress/group_num={}.pdf'.format(prefix, j)
                if not os.path.exists(os.path.dirname(filename)):
                    os.makedirs(os.path.dirname(filename))
                plt.suptitle("Latent factor {}".format(j), y=1.01)
                plt.savefig(filename, bbox_inches='tight')
                plt.clf()
            except:
                pass

            subdata['Latent factor'] = labels[:,j]
            try:
                sns.pairplot(subdata, kind="scatter", dropna=True, vars=subdata.columns.drop('Latent factor'), hue="Latent factor", diag_kind="kde", height=5)
                filename = '{}/pairplots/group_num={}.pdf'.format(prefix, j)
                if not os.path.exists(os.path.dirname(filename)):
                    os.makedirs(os.path.dirname(filename))
                plt.suptitle("Latent factor {}".format(j), y=1.01)
                plt.savefig(filename, bbox_inches='tight')
                plt.close('all')
            except:
                pass 

def saveFig(fig_fileprefix, bbox=True):
    PL.rcParams['svg.fonttype'] = 'none'
    for ftype in ['svg','png']:
        if FIG_TYPE == 'both' or FIG_TYPE==ftype:
            if bbox:
                PL.savefig(getPlotDir() + '/' + fig_fileprefix +'.'+ftype, bbox_inches='tight')
            else:
                PL.savefig(getPlotDir() + '/' + fig_fileprefix +'.'+ftype) 

def plot_rels(data, labels=None, colors=None, outfile="rels", latent=None, alpha=0.8):
    ns, n = data.shape
    if labels is None:
        labels = list(map(str, range(n)))
    ncol = 5
    # ncol = 4
    nrow = int(np.ceil(float(n * (n - 1) / 2) / ncol))
    #nrow=1
    #pylab.rcParams.update({'figure.autolayout': True})
    fig, axs = pylab.subplots(nrow, ncol)
    fig.set_size_inches(5 * ncol, 5 * nrow)
    #fig.set_canvas(pylab.gcf().canvas)
    pairs = list(combinations(range(n), 2))  #[:4]
    pairs = sorted(pairs, key=lambda q: q[0]**2+q[1]**2)  # Puts stronger relationships first
    if colors is not None:
        colors = (colors - np.min(colors)) / (np.max(colors) - np.min(colors)).clip(1e-7)

    for ax, pair in zip(axs.flat, pairs):
        if latent is None:
            ax.scatter(data[:, pair[0]], data[:, pair[1]], marker='.', edgecolors='none', alpha=alpha)
        else:
            # cs = 'rgbcmykrgbcmyk'
            markers = 'x+.o,<>^^<>,+x.'
            for j, ind in enumerate(np.unique(latent)):
                inds = (latent == ind)
                ax.scatter(data[inds, pair[0]], data[inds, pair[1]], c=colors[inds], cmap=pylab.get_cmap("jet"),
                           marker=markers[j], alpha=0.5, edgecolors='none', vmin=0, vmax=1)

        ax.set_xlabel(shorten(labels[pair[0]]))
        ax.set_ylabel(shorten(labels[pair[1]]))

    for ax in axs.flat[axs.size - 1:len(pairs) - 1:-1]:
        ax.scatter(data[:, 0], data[:, 1], marker='.')

    pylab.rcParams['font.size'] = 12  #6
    pylab.draw()
    #fig.set_tight_layout(True)
    fig.tight_layout()
    for ax in axs.flat[axs.size - 1:len(pairs) - 1:-1]:
        ax.set_visible(False)
    filename = outfile + '.png'
    if not os.path.exists(os.path.dirname(filename)):
        os.makedirs(os.path.dirname(filename))
    fig.savefig(outfile + '.png')  #df')
    pylab.close('all')
    return True 

def plot_rels(data, labels=None, colors=None, outfile="rels", latent=None, alpha=0.8, title=''):
    ns, n = data.shape
    if labels is None:
        labels = list(map(str, list(range(n))))
    ncol = 5
    nrow = int(np.ceil(float(n * (n - 1) / 2) / ncol))

    fig, axs = pylab.subplots(nrow, ncol)
    fig.set_size_inches(5 * ncol, 5 * nrow)
    pairs = list(combinations(list(range(n)), 2))
    if colors is not None:
        colors = (colors - np.min(colors)) / (np.max(colors) - np.min(colors))

    for ax, pair in zip(axs.flat, pairs):
        diff_x = max(data[:, pair[0]]) - min(data[:, pair[0]])
        diff_y = max(data[:, pair[1]]) - min(data[:, pair[1]])
        ax.set_xlim([min(data[:, pair[0]]) - 0.05 * diff_x, max(data[:, pair[0]]) + 0.05 * diff_x])
        ax.set_ylim([min(data[:, pair[1]]) - 0.05 * diff_y, max(data[:, pair[1]]) + 0.05 * diff_y])
        ax.scatter(data[:, pair[0]], data[:, pair[1]], c=colors, cmap=pylab.get_cmap("jet"),
                       marker='.', alpha=alpha, edgecolors='none', vmin=0, vmax=1)

        ax.set_xlabel(shorten(labels[pair[0]]))
        ax.set_ylabel(shorten(labels[pair[1]]))

    for ax in axs.flat[axs.size - 1:len(pairs) - 1:-1]:
        ax.scatter(data[:, 0], data[:, 1], marker='.')

    fig.suptitle(title, fontsize=16)
    pylab.rcParams['font.size'] = 12  #6
    # pylab.draw()
    # fig.set_tight_layout(True)
    pylab.tight_layout()
    pylab.subplots_adjust(top=0.95)
    for ax in axs.flat[axs.size - 1:len(pairs) - 1:-1]:
        ax.set_visible(False)
    filename = outfile + '.png'
    if not os.path.exists(os.path.dirname(filename)):
        os.makedirs(os.path.dirname(filename))
    fig.savefig(outfile + '.png')
    pylab.close('all')
    return True


# Hierarchical graph visualization utilities