Input GAT Exclusions

This function opens a dialog window for the user to select the variables to be used when identifying exclusions.

Figure: Dialog to select your rate settings

Select your desired variables and the exclusion criterion for each.

• 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.

inputGATexclusions(shp, step = 0, exclist = NULL, backopt = TRUE)

Arguments

shp

Spatial layer.

step

Integer step in the GAT program, for help reference.

exclist

The list of exclusion criteria, if pre-defined.

backopt

Boolean denoting whether to include the back button.

Details

Change the limitdenom option from FALSE to TRUE in step 9 (requesting rate calculation information) in runGATprogram if you want to allow only denominators with finite, non-zero values.

This function is very basic and can only handle numeric variables, so if you need to exclude based on a character variable, such as county name, you will need to create a numeric flag variable to use in this step.

If you have more than three exclusion criteria, you will need to create a composite flag variable that you can use in this step.

This function returns a list with the following nine elements:

• The names of the three variables to use when determining exclusions.

• The mathematical operators to use when calculating exclusions. Options are "equals", "less than", and "greater than".

• The values to use in the exclusion calculations.

Examples

if (interactive()) {
inputGATexclusions(shp = hftown)
}
#> $var1
#> [1] "cancel"
#> 
#> $math1
#> [1] "equals"
#> 
#> $val1
#> [1] 0
#> 
#> $var2
#> [1] "cancel"
#> 
#> $math2
#> [1] "equals"
#> 
#> $val2
#> [1] 0
#> 
#> $var3
#> [1] "cancel"
#> 
#> $math3
#> [1] "equals"
#> 
#> $val3
#> [1] 0
#>