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Calling Sequence
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pointplot(L, options)
pointplot(A, options)
pointplot(v1, v2, options)
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Parameters
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L
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set or list of two-dimensional points
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A
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n by 2 Matrix, where n is any positive integer
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v1, v2
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Vectors of the same length
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options
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(optional) equations of the form option=value, where option is any of the available plot options or one of connect, symbol, or color
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Description
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The pointplot function is used to create a two-dimensional plot of points. The points that are to be plotted come from the set or list L, the Matrix A, or the Vectors v1 and v2.
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The list may be either a list of points p, where p is a list or Vector containing two numbers, or a flat list with an even number of values.
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The Matrix must be n by 2, where n is any positive integer. Each row of the Matrix contains the x- and y-coordinates of a point. If a 2 by n Matrix is given, with n not equal to 2, then it will be automatically transposed. The Vectors, representing the x-coordinates and y-coordinates respectively, can have any length, but both must have the same length.
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If you have a very large number of points, it is recommended that you provide the data as a Matrix with datatype set to float.
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A common error is to provide a sequence of points without putting them in a list. Note that pointplot([1,2], [3,4]) is interpreted as the points (1,3) and (2,4), and not as the points (1,2) and (3,4).
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The option connect=true specifies that the points are to be connected by line segments. In this case, L should be a list to ensure a consistent ordering of the points. The value of this option is assumed to be true if the style=line or style=pointline option is provided.
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The option symbol=s specifies the symbol used in the display. See the symbol entry in the plot/option help page for a list of available symbols.
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The option color=s specifies the color of the points. The allowable values for s are given in the plot/color help page. A list or Vector of n colors, where n is the number of points, may also be provided.
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Remaining arguments are interpreted as options which are specified as equations of the form option = value. These options are the same as those available for the plot command, as described in plot/options.
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Examples
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The following constructions are equivalent.
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It is also possible to add annotations to point plots.
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