ENH: Minor bugs corrected.
ENH: Minor bugs corrected.

bpaniagua/SPHARM-PDM,bpaniagua/SPHARM-PDM,NIRALUser/SPHARM-PDM,zarquon42b/SPHARM-PDM,zarquon42b/SPHARM-PDM,NIRALUser/SPHARM-PDM,bpaniagua/SPHARM-PDM,NIRALUser/SPHARM-PDM