# compute temp/region/eff command

## Syntax

``` LAMMPS
compute ID group-ID temp/region/eff region-ID
```

-   ID, group-ID are documented in [compute](compute) command
-   temp/region/eff = style name of this compute command
-   region-ID = ID of region to use for choosing atoms

## Examples

``` LAMMPS
compute mine flow temp/region/eff boundary
```

## Description

Define a computation that calculates the temperature of a group of
nuclei and electrons in the [electron force field](pair_eff) model,
within a geometric region using the electron force field. A compute of
this style can be used by commands that compute a temperature (e.g.,
[thermo_modify](thermo_modify)).

The operation of this compute is exactly like that described by the
[compute temp/region](compute_temp_region) command, except that the
formula for the temperature itself includes the radial electron velocity
contributions, as discussed by the [compute temp/eff](compute_temp_eff)
command.

## Output info

This compute calculates a global scalar (the temperature) and a global
vector of length 6 (KE tensor), which can be accessed by indices 1\--6.
These values can be used by any command that uses global scalar or
vector values from a compute as input. See the [Howto
output](Howto_output) page for an overview of LAMMPS output options.

The scalar value calculated by this compute is \"intensive\". The vector
values are \"extensive\".

The scalar value will be in temperature [units](units). The vector
values will be in energy [units](units).

## Restrictions

This compute is part of the EFF package. It is only enabled if LAMMPS
was built with that package. See the [Build package](Build_package) page
for more info.

## Related commands

[compute temp/region](compute_temp_region), [compute
temp/eff](compute_temp_eff), [compute pressure](compute_pressure)

## Default

none