# getrom

## Description

Use `getrom`

to obtain reduced-order models from a
`ModalTruncation`

or `SparseModalTruncation`

model order
reduction task. For the full workflow, see Task-Based Model Order Reduction Workflow.

returns a reduced-order model `rsys`

= getrom(`R`

,`Name=Value`

)`rsys`

based on the options specified by
one or more name-value arguments.

returns a modal decomposition of the original model `rsys`

= getrom(`R`

)`sys`

.

For the ordinary modal truncation, this syntax returns:

The modal form (same as

`modalreal`

) of`sys`

when`R.Options.ModeOnly`

is set to`false`

The Schur form when

`R.Options.ModeOnly`

is set to`true`

.

For sparse modal truncation, this syntax returns a reduced modal form based on the subset of modes computed by the algorithm. This subset is controlled by the

`R.Options.Focus`

or`R.Options.MaxOrder`

options

`getrom(`

returns help specific to
the model order specification object `R`

,'-help')`R`

. The returned help shows the
name-value arguments and syntaxes applicable to `R`

.

## Examples

## Input Arguments

## Output Arguments

## More About

## Version History

**Introduced in R2023b**

## See Also

### Functions

`reducespec`

|`process`

|`view (balanced)`

|`getrom (balanced)`

|`view (ncf)`

|`getrom (ncf)`

|`view (modal)`