# plm-deprecated

##### Deprecated functions of plm

`dynformula`

, `pht`

, `plm.data`

, and `pvcovHC`

are
deprecated functions which could be removed from plm in a near future.

##### Usage

`pvcovHC(x, ...)`plm.data(x, indexes = NULL)

dynformula(formula, lag.form = NULL, diff.form = NULL, log.form = NULL)

# S3 method for dynformula
formula(x, ...)

# S3 method for dynformula
print(x, ...)

pFormula(object)

# S3 method for pFormula
as.Formula(x, ...)

# S3 method for pFormula
as.Formula(x, ...)

# S3 method for pFormula
model.frame(formula, data, ..., lhs = NULL, rhs = NULL)

# S3 method for pFormula
model.matrix(
object,
data,
model = c("pooling", "within", "Between", "Sum", "between", "mean", "random", "fd"),
effect = c("individual", "time", "twoways", "nested"),
rhs = 1,
theta = NULL,
cstcovar.rm = NULL,
...
)

detect_lin_dep(object, ...)

##### Arguments

- …
further arguments.

- indexes
a vector (of length one or two) indicating the (individual and time) indexes (see Details);

- formula
a formula,

- lag.form
a list containing the lag structure of each variable in the formula,

- diff.form
a vector (or a list) of logical values indicating whether variables should be differenced,

- log.form
a vector (or a list) of logical values indicating whether variables should be in logarithms.

- object, x
an object of class

`"plm"`

,- data
a

`data.frame`

,- lhs
see Formula

- rhs
see Formula

- model
see plm

- effect
see plm

- theta
the parameter of transformation for the random effect model

- cstcovar.rm
remove the constant columns or not

##### Details

`dynformula`

was used to construct a dynamic formula which was the
first argument of `pgmm`

. `pgmm`

uses now multi-part formulas.

`pht`

estimates the Hausman-Taylor model, which can now be estimated
using the more general `plm`

function.

`plm.data`

is replaced by `pdata.frame`

.

`pvcovHV`

is replaced by `vcovHC`

.

`detect_lin_dep`

is replaced by `detect.lindep`

.

*Documentation reproduced from package plm, version 2.2-5, License: GPL (>= 2)*