fars_map_state: Plot FARS observation locations within a state
In willrussifp/RPackageCoursera: Final Project for "Building an R Package" on Coursera
Description
Usage
Arguments
Value
Examples
View source: R/fars_functions.R
Description
This function plots a map of the specified state
and the location of each observation in the
FARS data for a specified year.
The function will return a message if there
were no accidents for the specified state
and year.
Note: The function will return an error if the
specified state.num is not valid. Additionally,
some state numbers, for example "2", cause an
error due to specified plot regions being out
of bounds.
Usage
1
fars_map_state(state.num, year)
Arguments
state.num
An integer or character string
of an integer specifing which state to plot.
An error will be thrown if an invalid state
number is specified.
year
An integer or character string of
an integer specifying the year for which
to plot the accidents.
Value
If there is data for the specified
state and year, the function will plot a
map of the state and the locations of
the accidents for that year. If there are
no recorded accidents for that year and
state then the function will return a
message to notify that case.
Examples
1
2
3
4
5
6
7
8
## Not run:
fars_map_state(13, 2013)
fars_map_state(13, "2013")
fars_map_state("13", 2013)
fars_map_state("13", "2013")
## End(Not run)
willrussifp/RPackageCoursera documentation built on May 19, 2019, 4:06 p.m.
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Description Usage Arguments Value Examples
View source: R/fars_functions.R
Description
This function plots a map of the specified state and the location of each observation in the FARS data for a specified year.
The function will return a message if there were no accidents for the specified state and year.
Note: The function will return an error if the specified state.num is not valid. Additionally, some state numbers, for example "2", cause an error due to specified plot regions being out of bounds.
Usage
1 | fars_map_state(state.num, year)
|
Arguments
state.num |
An integer or character string of an integer specifing which state to plot. An error will be thrown if an invalid state number is specified. |
year |
An integer or character string of an integer specifying the year for which to plot the accidents. |
Value
If there is data for the specified state and year, the function will plot a map of the state and the locations of the accidents for that year. If there are no recorded accidents for that year and state then the function will return a message to notify that case.
Examples
1 2 3 4 5 6 7 8 | ## Not run:
fars_map_state(13, 2013)
fars_map_state(13, "2013")
fars_map_state("13", 2013)
fars_map_state("13", "2013")
## End(Not run)
|
R Package Documentation
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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