# Absolute Frequency Value

(Redirected from Event Frequency)

An Absolute Frequency Value is a statistic output of a frequency function.

**AKA:**Event Frequency.**Context:**- It can be a member of a Frequency Table.
- It can range from being an Actual Frequency Value to being an Expected Frequency Value.
- It can range from being a High Frequency Value to being a Low Frequency Value.
- It can be an Experimental Frequency Value, if it is associated with a Random Experiment.

**Example(s):**- 5 is the Frequency Value for Frequency Function [math]f[/math](
*a*, {*b*, [math]c[/math],*a*, [math]b[/math],*a*})

- 5 is the Frequency Value for Frequency Function [math]f[/math](
**Counter-Example(s):**- any Relative Frequency Value.
- any Percent Value.
- any Ratio Value.

**See:**Term Frequency, Frequent Itemset.

## References

### 2009

- http://en.wikipedia.org/wiki/Frequency_(statistics)
- In statistics the '
*frequency of an event [math]i[/math] is the number*n_{i}of times the event occurred in the experiment or the study. These frequencies are often graphically represented in histograms. - We speak of
**absolute frequencies**, when the counts*n*themselves are given and of_{i}*(relative) frequencies, when those are normalized by the total number of events:*- [math] f_i = \frac{n_i}{N} = \frac{n_i}{\sum_i n_i}. [/math]

- Taking the
*f*for all [math]i[/math] and tabulating or plotting them leads to a frequency distribution._{i}

- In statistics the '

### 2008

- Dept. of Eduction, University of Irvine. (2009). “CSET Math Glossary."
**frequency.**The number of items occurring in a given category.

### 2005

- (Lapata & Keller, 2005) ⇒ Mirella Lapata, and Frank Keller. (2005). “Web-based Models for Natural Language Processing.” In: ACM Transactions on Speech and Language Processing (TSLP), 2(1).
- Previous work demonstrated that web counts can be used to approximate bigram counts, thus suggesting that web-based frequencies should be useful for a wide variety of NLP tasks.

### 2004

- http://www.mathsteacher.com.au/year8/ch17_stat/03_freq/freq.htm
- The frequency of a particular data value is the number of times the data value occurs. For example, if four students have a score of 80 in mathematics, and then the score of 80 is said to have a frequency of 4. The frequency of a data value is often represented by f.
- A frequency table is constructed by arranging collected data values in ascending order of magnitude with their corresponding frequencies.

### 2002

- http://www.teacherlink.org/content/math/interactive/probability/glossary/glossary.html
- Empirical Frequency: The number of times an outcome has been observed to occur during repeated trials of an experiment; also called Experimental Frequency.
- Frequency: Measures how often something occurs within some given distance or time period.
- Theoretical Frequency: The number of times an outcome is expected to occur during repeated trials of an experiment based on probability principles.

### 2000

- Math.com. (2000). “Glossary, http://www.math.com/school/glossary/defs/frequency.html
- frequency: The number of times a particular item appears in a data set.