TestDesign (version 1.0.2)

config_Static-class: createStaticTestConfig

Description

Create a '>config_Static object for Static (fixed-form) test assembly.

Usage

createStaticTestConfig(item_selection = NULL, MIP = NULL)

Arguments

item_selection

A list containing item selection criteria. This should have the following entries:

• method The type of criteria. Accepts MAXINFO, TIF, TCC.

• info_type The type of information. Accepts FISHER.

• target_location A numeric vector containing the locations of target theta points. (e.g. c(-1, 0, 1))

• target_value A numeric vector containing the target values at each theta location. This should have the same length with target_location. Ignored if method is MAXINFO.

• target_weight A numeric vector containing the weights for each theta location. This should have the same length with targetlocation. Defaults to a vector of 1s.

MIP

A list containing solver options. This should have the following entries:

• solver The type of solver. Accepts lpsymphony, Rsymphony, gurobi, lpSolve, Rglpk.

• verbosity Verbosity level of the solver. Defaults to -2.

• time_limit Time limit in seconds passed onto the solver. Defaults to 60. Used in solvers lpsymphony, Rsymphony, gurobi, Rglpk.

• gap_limit Termination criterion. Gap limit in relative scale passed onto the solver. Defaults to .05. Used in solver gurobi.

• gap_limit_abs Termination criterion. Gap limit in absolute scale passed onto the solver. Defaults to .05. Used in solver lpsymphony, Rsymphony.

• obj_tol Termination criterion. Tolerance on target objective value in absolute difference scale. Defaults to .05. Ignored if method is MAXINFO.

Examples

# NOT RUN {
cfg1 <- createStaticTestConfig(
  list(
    method = "MAXINFO",
    info_type = "FISHER",
    target_location = c(-1, 0, 1),
    target_weight = c(1, 1, 1)
  )
)

cfg2 <- createStaticTestConfig(
  list(
    method = "TIF",
    info_type = "FISHER",
    target_location = c(-1, 0, 1),
    target_weight = c(1, 1, 1),
    target_value = c(8, 10, 12)
  )
)

cfg3 <- createStaticTestConfig(
  list(
    method = "TCC",
    info_type = "FISHER",
    target_location = c(-1, 0, 1),
    target_weight = c(1, 1, 1),
    target_value = c(10, 15, 20)
  )
)
# }