def plotcommand(cosmology='WMAP5', plotname=None):
    """pass"""
    xarray = 10 ** np.arange(1, 15, 0.2)
    yval = 'c'
    zarray = np.arange(0, 5, 0.5)
    xtitle = 'Halo Mass (M$_{sol}$)'
    ytitle = 'Concentration'
    linelabel = 'z='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    plt.ylim([2, 30])
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=zval, Mi=xarray)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray, label=linelabel + str(zval), color=colors[zind])
        ax.plot(xarray, commah.commah.cduffy(zval, xarray), color='black')
    ax.set_xscale('log')
    ax.set_yscale('log')
    leg = ax.legend(loc=1)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_CM_relation.png'" % plotname)
        fig.savefig(plotname + '_CM_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(0, 1, 0.05) - 1
    yval = 'c'
    zarray = 10 ** np.arange(6, 14, 2)
    xtitle = 'Redshift'
    ytitle = 'NFW Concentration'
    linelabel = 'log$_{10}$ M$_{z}$(M$_{sol}$)='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=xarray, Mi=zval)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray, label=linelabel + '{0:.1f}'.format(np.log10(zval)), color=colors[zind])
    leg = ax.legend(loc=1)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_Cz_relation.png'" % plotname)
        fig.savefig(plotname + '_Cz_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(0, 1, 0.05) - 1
    yval = 'zf'
    zarray = 10 ** np.arange(6, 14, 2)
    xtitle = 'Redshift'
    ytitle = 'Formation Redshift'
    linelabel = 'log$_{10}$ M$_{z}$(M$_{sol}$)='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=xarray, Mi=zval)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray, label=linelabel + '{0:.1f}'.format(np.log10(zval)), color=colors[zind])
    leg = ax.legend(loc=2)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_zfz_relation.png'" % plotname)
        fig.savefig(plotname + '_zfz_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(0, 1, 0.05) - 1
    yval = 'dMdt'
    zarray = 10 ** np.arange(10, 14, 0.5)
    xtitle = 'log$_{10}$ (1+z)'
    ytitle = 'log$_{10}$ Accretion Rate M$_{sol}$ yr$^{-1}$'
    linelabel = 'log$_{10}$ M$_z$(M$_{sol}$)='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    cosmo = commah.getcosmo(cosmology)
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=xarray, Mi=zval, com=False, mah=True)
        yarray = output[yval].flatten()
        ax.plot(np.log10(xarray + 1.0), np.log10(yarray), label=linelabel + '{0:.1f}'.format(np.log10(zval)), color=colors[zind])
        semianalytic_approx = 71.6 * (zval / 1000000000000.0) * (cosmo['h'] / 0.7) * (-0.24 + 0.75 * (xarray + 1)) * np.sqrt(cosmo['omega_M_0'] * (xarray + 1) ** 3 + cosmo['omega_lambda_0'])
        ax.plot(np.log10(xarray + 1), np.log10(semianalytic_approx), color='black')
    leg = ax.legend(loc=2)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_dMdtz_relation.png'" % plotname)
        fig.savefig(plotname + '_dMdtz_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(10, 14, 0.5)
    yval = 'dMdt'
    zarray = np.arange(0, 5, 0.5)
    xtitle = 'Halo Mass M$_{sol}$'
    ytitle = 'Accretion Rate M$_{sol}$ yr$^{-1}$'
    linelabel = 'z='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=zval, Mi=xarray, com=False, mah=True)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray, label=linelabel + str(zval), color=colors[zind])
    ax.set_xscale('log')
    ax.set_yscale('log')
    leg = ax.legend(loc=2)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_MAH_M_relation.png'" % plotname)
        fig.savefig(plotname + '_MAH_M_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(10, 14, 0.5)
    yval = 'dMdt'
    zarray = np.arange(0, 5, 0.5)
    xtitle = 'Halo Mass M$_{sol}$'
    ytitle = 'Specific Accretion Rate yr$^{-1}$'
    linelabel = 'z='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=zval, Mi=xarray, mah=True, com=False)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray / xarray, label=linelabel + str(zval), color=colors[zind])
    ax.set_xscale('log')
    ax.set_yscale('log')
    leg = ax.legend(loc=1)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_specificMAH_M_relation.png'" % plotname)
        fig.savefig(plotname + '_specificMAH_M_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(0, 1, 0.05) - 1
    yval = 'Mz'
    zarray = 10 ** np.arange(10, 14, 0.5)
    xtitle = 'Redshift'
    ytitle = 'M(z) (M$_{sol}$)'
    linelabel = 'log$_{10}$ M$_{0}$(M$_{sol}$)='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=0, Mi=zval, z=xarray)
        yarray = output[yval].flatten()
        ax.plot(xarray, yarray, label=linelabel + '{0:.1f}'.format(np.log10(zval)), color=colors[zind])
    ax.set_yscale('log')
    leg = ax.legend(loc=1)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_Mzz_relation.png'" % plotname)
        fig.savefig(plotname + '_Mzz_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    xarray = 10 ** np.arange(0, 1, 0.02) - 1
    yval = 'Mz'
    zarray = 10 ** np.arange(10, 14, 0.5)
    xtitle = 'Redshift'
    ytitle = 'log$_{10}$ M(z)/M$_{0}$'
    linelabel = 'log$_{10}$ M$_{0}$(M$_{sol}$)='
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.set_xlabel(xtitle)
    ax.set_ylabel(ytitle)
    colors = cm.rainbow(np.linspace(0, 1, len(zarray)))
    for zind, zval in enumerate(zarray):
        output = commah.run(cosmology=cosmology, zi=0, Mi=zval, z=xarray)
        yarray = output[yval].flatten()
        ax.plot(xarray, np.log10(yarray / zval), label=linelabel + '{0:.1f}'.format(np.log10(zval)), color=colors[zind])
    leg = ax.legend(loc=3)
    leg.get_frame().set_alpha(0)
    leg.get_frame().set_edgecolor('white')
    for label in leg.get_texts():
        label.set_fontsize('small')
    for label in leg.get_lines():
        label.set_linewidth(4)
    if plotname:
        fig.tight_layout(pad=0.2)
        print("Plotting to '%s_MzM0z_relation.png'" % plotname)
        fig.savefig(plotname + '_MzM0z_relation.png', dpi=fig.dpi * 5)
    else:
        plt.show()
    return 'Done'