Get the location (model, matrix, row, column) and other info for a parameter
Returns a data.frame summarizing the free parameters in a model, possibly filtered using ‘labels’.
For each located parameter, the label, model, matrix, row, col, value, and lbound & ubound are given as a row in the dataframe.
Duplicated labels return a row for each location in which they are found.
omxLocateParameters(model, labels = NULL, indep = FALSE)
model |
a MxModel object |
labels |
optionally specify which free parameters to retrieve. |
indep |
fetch parameters from independent submodels. |
Invoking the function with the default value for the ‘labels’ argument retrieves all the free parameters. The ‘labels’ argument can be used to select a subset of the free parameters. Note that ‘NA’ is a valid input to ‘labels’.
A <- mxMatrix('Full', 2, 2, labels = c("A11", "A12", NA, "A11"), values= 1:4,
free = TRUE, byrow = TRUE, name = 'A')
model <- mxModel(A, name = 'model')
# Request all free parameters in model
omxLocateParameters(model)
# Request free parameters "A11" and all NAs
omxLocateParameters(model, c("A11", NA))
# Works with submodel
B = mxMatrix(name = 'B', 'Full', 1, 2, labels = c("B11", "notme"),
free = c(TRUE, FALSE), values= pi)
model <- mxModel(model, mxModel(B, name = 'subB'))
# nb: only returns free parameters ('notme' not shown)
omxLocateParameters(model)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.