To create a new column to a TableLayout, what do you do?
A. add a view to a row
B. change the column property
C. drag the last row over
D. instantiate a column object
Answer: A
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What is the effect of this transformation if a term occurs in one docu- ment? In every document?
Consider a document-term matrix, where tfij is the frequency of the i
th word
(term) in the jth document and m is the number of documents. Consider
the variable transformation that is defined by
where dfi is the number of documents in which the i
th term appears and is
known as the document frequency of the term. This transformation is
known as the inverse document frequency transformation.
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The ____ character is used to indicate that a letter is a hot key on a menu item.
A. ampersand (&) B. forward slash (/) C. back slash (\) D. underscore (_)