Standard deviationStandard deviation is a concept from statistics and probability theory, describing how much a given data point deviates from the average (mean) value within a dataset. It is often expressed in conjunction with a dataset's mean, median and/or mode values.
In the TAPoR toolset, standard deviation is used to generate a word's Z-score within the Collocation tools. This information is provided in a table that also details the word's frequency within the text.
For more information, please see the Wikipedia article on standard deviation. For a mathematical explanation, please see the Wolfram MathWorld entry.
Return to Glossary. is a concept from statistics and probability theory, describing how much a given data point deviates from the average (meanIn statistics, the mean is the arithmetic average of a set of values.
When used in text analysis, the set of values is the distribution of words in the source text, and the mean value the word with the occurrence rate closest to the average.
For more information, see the Wikipedia.
Return to Glossary.) value within a dataset. It is often expressed in conjunction with a dataset's meanIn statistics, the mean is the arithmetic average of a set of values.
When used in text analysis, the set of values is the distribution of words in the source text, and the mean value the word with the occurrence rate closest to the average.
For more information, see the Wikipedia.
Return to Glossary., median and/or mode values.
In the TAPoR toolset, standard deviationStandard deviation is a concept from statistics and probability theory, describing how much a given data point deviates from the average (mean) value within a dataset. It is often expressed in conjunction with a dataset's mean, median and/or mode values.
In the TAPoR toolset, standard deviation is used to generate a word's Z-score within the Collocation tools. This information is provided in a table that also details the word's frequency within the text.
For more information, please see the Wikipedia article on standard deviation. For a mathematical explanation, please see the Wolfram MathWorld entry.
Return to Glossary. is used to generate a word's Z-scoreA z-score is an expression of how many standard deviations higher or lower a data point is from the mean.
For more information, see the Wikipedia.
Return to Glossary. within the CollocationCollocation refers to the occurrence of words adjacently more often than would be expected by chance.
Collocation is the relationship between two words or groups of words that often go together and form a common expression. If the expression is heard often, the words become 'glued' together in our minds. 'Crystal clear', 'middle management' 'nuclear family' and 'cosmetic surgery' are examples of collocated pairs of words. Some words are often found together because they make up a compound noun, for example 'riding boots' or 'motor cyclist'.
Return to Glossary. tools. This information is provided in a table that also details the word's frequency within the text.