Difference between revisions of "FrequencyPolygon Command"
From GeoGebra Manual
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{{Note|Frequency polygon is a line graph drawn by joining all the midpoints of the top of the bars of a histogram. Therefore usage of this command is the same as usage of [[Histogram Command]].}} | {{Note|Frequency polygon is a line graph drawn by joining all the midpoints of the top of the bars of a histogram. Therefore usage of this command is the same as usage of [[Histogram Command]].}} | ||
| − | ; FrequencyPolygon[<List of Class Boundaries>, <List of Heights>]: Creates a frequency polygon with vertices in given heights. The class boundaries determine the x-coordinate of each vertex. | + | ; FrequencyPolygon[ <List of Class Boundaries>, <List of Heights> ]: Creates a frequency polygon with vertices in given heights. The class boundaries determine the x-coordinate of each vertex. |
| − | + | ; FrequencyPolygon[ <List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density>, <Density Scale Factor (optional)> ]: Creates a frequency polygon using the raw data. The class boundaries determine the x-coordinates of vertices and are used to determine how many data elements lie in each class. The y-coordinate of a vertex is determined as follows | |
| − | ; FrequencyPolygon[<List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density>, <Density Scale Factor | ||
| − | |||
* If ''Use Density = true'', height = (Density Scale Factor) * (class frequency) / (class width) | * If ''Use Density = true'', height = (Density Scale Factor) * (class frequency) / (class width) | ||
* If ''Use Density = false'', height = class frequency | * If ''Use Density = false'', height = class frequency | ||
| − | |||
: By default, Use Density = true and Density Scale Factor = 1. | : By default, Use Density = true and Density Scale Factor = 1. | ||
| − | + | ;FrequencyPolygon[ <Boolean Cumulative>, <List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density> , <Density Scale Factor (optional)> ] | |
| − | ;FrequencyPolygon[ <Boolean Cumulative>, <List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density> , <Density Scale Factor | ||
:If Cumulative is true this creates a frequency polygon where each vertex y-coordinate equals the frequency of the class plus the sum of all previous frequencies. | :If Cumulative is true this creates a frequency polygon where each vertex y-coordinate equals the frequency of the class plus the sum of all previous frequencies. | ||
| + | {{Note|For examples see [[Histogram Command]].}} | ||
Revision as of 16:01, 6 June 2013
Note: Frequency polygon is a line graph drawn by joining all the midpoints of the top of the bars of a histogram. Therefore usage of this command is the same as usage of Histogram Command.
- FrequencyPolygon[ <List of Class Boundaries>, <List of Heights> ]
- Creates a frequency polygon with vertices in given heights. The class boundaries determine the x-coordinate of each vertex.
- FrequencyPolygon[ <List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density>, <Density Scale Factor (optional)> ]
- Creates a frequency polygon using the raw data. The class boundaries determine the x-coordinates of vertices and are used to determine how many data elements lie in each class. The y-coordinate of a vertex is determined as follows
- If Use Density = true, height = (Density Scale Factor) * (class frequency) / (class width)
- If Use Density = false, height = class frequency
- By default, Use Density = true and Density Scale Factor = 1.
- FrequencyPolygon[ <Boolean Cumulative>, <List of Class Boundaries>, <List of Raw Data>, <Boolean Use Density> , <Density Scale Factor (optional)> ]
- If Cumulative is true this creates a frequency polygon where each vertex y-coordinate equals the frequency of the class plus the sum of all previous frequencies.
Note: For examples see Histogram Command.
