identifyGATboundary: Identify GAT Boundary

In ajstamm/gatpkg: Geographic Aggregation Tool (GAT)

Identify GAT Boundary

Description

This function opens a dialog window for the user to select a character variable to prioritize larger geographic areas such as counties in which to aggregate. The dialog window looks like this.

Figure: Dialog to select your boundary variable

Select your desired boundary variable. If you do not want to include a boundary, select "NONE". If you want to enforce the boundary, check the box on the right as shown. Then click on one of the following buttons.

• Click Next to continue to the next step.

• Click Cancel to end GAT.

• Click Back to return to the previous step.

• Click Help to get further guidance and open this manual.

Usage

identifyGATboundary(
  shp,
  step = 3,
  boundary = "NONE",
  myvar = "NONE",
  borders = FALSE,
  check = FALSE,
  backopt = TRUE,
  bgcol = "lightskyblue3",
  quitopt = "Quit",
  buttoncol = "cornflowerblue"
)

Arguments

shp	Spatial layer.
step	Integer step in GAT, for help reference.
boundary	Boundary variable, if pre-selected. Defaults to "NONE", which means no boundary selected.
myvar	Boundary variable, if pre-selected.
borders	Boolean denoting whether to enforce boundary. Default is FALSE.
check	Checkbox setting, if pre-selected. Currently does not do anything.
backopt	Boolean denoting whether to include the back button.
bgcol	Text string containing UI background color.
quitopt	Text string for the cancel button.
buttoncol	Text string containing UI button color.

Details

This function reads in a dataset and extracts the names of variables that are (1) character and (2) not unique, since only these variables will be suitable for defining larger geographic areas in GAT.

Examples

if (interactive()) {
# select boundary variable
identifyGATboundary(shp = hftown)
}

ajstamm/gatpkg documentation built on Nov. 23, 2023, 9:44 a.m.