# shortensigroi

Shorten signal regions of interest from left and right

## Syntax

``roilimsout = shortensigroi(roilims,sl,sr)``

## Description

example

````roilimsout = shortensigroi(roilims,sl,sr)` shortens the signal regions of interest specified in `roilims` from the left by `sl` samples and from the right by `sr` samples. The function removes all regions of length `sl` + `sr` or less.```

## Examples

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Create a two-column matrix of integers that can represent regions of interest of a signal. Shorten the regions of interest by three samples from the left and two samples from the right. `shortensigroi` removes regions of interested that are shortened by more than their length.

```rois = [1 10; 17 26; 24 32; 38 40]; xrois = shortensigroi(rois,3,2)```
```xrois = 3×2 4 8 20 24 27 30 ```

## Input Arguments

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Region-of-interest limits, specified as a two-column matrix of positive integers. The ith row of `roilims` contains nondecreasing indices corresponding to the beginning and end samples of the ith region of interest of a signal.

Example: `[5 8; 12 20; 18 25]` specifies a two-column region-of-interest matrix with three regions.

Data Types: `single` | `double` | `int8` | `int16` | `int32` | `int64` | `uint8` | `uint16` | `uint32` | `uint64`

Number of samples to shorten from the left, specified as a nonnegative integer.

Data Types: `single` | `double` | `int8` | `int16` | `int32` | `int64` | `uint8` | `uint16` | `uint32` | `uint64`

Number of samples to shorten from the right, specified as a nonnegative integer.

Data Types: `single` | `double` | `int8` | `int16` | `int32` | `int64` | `uint8` | `uint16` | `uint32` | `uint64`

## Output Arguments

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Modified region-of-interest limits, returned as a two-column matrix of positive integers. Output limits are returned in sorted order using the `sortrows` function.

## Extended Capabilities

### C/C++ Code GenerationGenerate C and C++ code using MATLAB® Coder™.

Introduced in R2020b