isQualitative

Say if a data frame contains only qualitative variables.

Interface of 'MIXMOD' software for supervised, unsupervised and
semi-supervised classification with mixture modelling <doi: 10.18637/jss.v067.i06>.

Quentin Grimonprez

<dl><dt>x</dt>
<dd>a vector or a matrix or a data frame</dd></dl>

<dl>

<dt>x</dt>
<dd>a vector or a matrix or a data frame</dd>

</dl>