Signature Description Parameters

template<typename T>
bool
has_column(const char *name) const;
        
Returns true if self has the named column, otherwise false T: Type of the named data column
name: Name of the column

template<typename T>
bool
has_column(std::size_t index) const;
        
Returns true if self has the indexed column, otherwise false T: Type of the named data column
index: Index of the column
C++ DataFrame