Читать книгу Medical Statistics - David Machin - Страница 68

Although graphical presentation is very desirable it should not be overlooked that tabular methods are very important (see Table 2.3). In particular, tables can give more precise numerical information than a graph, such as the number of observations, the mean and some measure of variability of each tabular entry. They often take less space than a graph containing the same information. Standard statistical computer software can be programmed to provide basic summary statistics in tabular form on many variables.