RF: In case a user just wants to use a single integer.
RF: In case a user just wants to use a single integer.

To get data from a single b-value 'tier'

villalonreina/dipy,JohnGriffiths/dipy,FrancoisRheaultUS/dipy,StongeEtienne/dipy,villalonreina/dipy,demianw/dipy,JohnGriffiths/dipy,StongeEtienne/dipy,matthieudumont/dipy,nilgoyyou/dipy,FrancoisRheaultUS/dipy,demianw/dipy,nilgoyyou/dipy,matthieudumont/dipy