Line chart of map and non map data

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Description

The line chart function plots an attribute of a map data. It also returns tabular data or frequencies

Usage

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linemap(source,layer='',attributes,type='',label="",col='')
## Default S3 method:
linemap(source,layer='',attributes,type='',label="",col='')
## S3 method for class 'linemap'
print(x,...)
## S3 method for class 'linemap'
summary(object,...)
## S3 method for class 'linemap'
plot(x,...)

Arguments

source

Folder path of the layer or map or data. Please quote the full folder path with forward slashes "/". You can use R object as a source but you must set the layer parameter to "nofile"; see below

layer

The layer map in the folder that you want to work with. It is the file name of map. This is case sensitive, please. In case you want to use non spatial data such as ".csv", ".txt", "dat" or ".tab" insert the full file name as layer. In case of using R object as a source set "layer" parameter to "nofile"

type

The type of line chart you want to use. It can take "p","l","o","b","c","s","S", or "h". Set it to "map" if you want a map to be drawn for the attribute

attributes

The attributes or variables of the map name of the layer or the map you want use. This function takes only two attributes separated by comma: see example below. In case of using non spatial data such as ".csv", ".txt", "dat" or ".tab" attributes are variable or column names

label

The labeling title of the chart.

col

The colour of the chart

x

An object of class "linemap", i.e., a fitted model.

object

an object of class "linemap", i.e., a fitted model.

...

any other R parameters can be added

Value

Objects of the class that basically list its elements

data

Original data for the model

table

Frequency of the original data

source

Folder path of the layer or map

layer

The layer map in the source folder

attribute

The attribute name of the layer or the map that was used.

label

he labeling title of the chart.

Author(s)

George Owusu

References

Bivand, R. S., Pebesma, E. J., Gomez-Rubio, V. (2008) Applied Spatial Data Analysis with R. Springer Kabacoff, I. R. (2011) R in Action. Data Analysis and Graphics with R. Manning Publications Co

Examples

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## Not run: 
#example one: using non spatial data
source<- system.file("external", package = "mgraph")
layer="farms"
attributes="Age,FArea"
graph=linemap(source,layer,attributes,type="l",col='black',label="")
summary(graph)
print(graph)
plot(graph)

#example two: using R object
data(meuse.all, package="gstat")
linemap(meuse.all,layer="nofile",attributes="zinc,copper",type="l")

## End(Not run)