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null
pseudo-types used in this documentation
Última actualización: 2011-10-24
Frecuencia de uso: 1
Calidad:
$var = null;
see also is_null() and unset().
Última actualización: 2011-10-24
Frecuencia de uso: 1
Calidad:
the majority of null hypotheses in practice do not meet this "exactness" criterion.
the majority of null hypotheses in practice do not meet this "exactness" criterion.
a blank line in a csv file will be returned as an array comprising a single null field, and will not be treated as an error.
a blank line in a csv file will be returned as an array comprising a single null field, and will not be treated as an error.
most statisticians believe that it is valid to state direction as a part of null hypothesis, or as part of a null hypothesis/alternative hypothesis pair.
most statisticians believe that it is valid to state direction as a part of null hypothesis, or as part of a null hypothesis/alternative hypothesis pair.
according to this view, the null hypothesis must be numerically exact—it must state that a particular quantity or difference is equal to a particular number.
according to this view, the null hypothesis must be numerically exact—it must state that a particular quantity or difference is equal to a particular number.