# Generate random sinc data

### Description

Function draws `n`

points uniformly from the interval *[a, b]*, calculates
the sinc (normalized sinc function) values for that points and adds a normal noise with a standard deviation
of `noise`

to these values.

### Usage

1 | ```
sincdata(n, noise = 0, a = -4, b = 4)
``` |

### Arguments

`n` |
number of points to generate |

`noise` |
noise level to add to sinc values, i.e. standard deviation of normal noise |

`a` |
left bound of interval from which the xs are drawn, |

`b` |
right bound of interval from which the ys are drawn, |

### Value

Randomly generated sinc data

`X` |
matrix with one column (i.e. a vector, but returned object is a matrix) containing the x-values |

`y` |
matrix with one row (i.e. a vector, but returned object is a matrix) containing the y-values |

### Author(s)

Jan Saputra Mueller

### References

http://en.wikipedia.org/wiki/Sinc\_function

### See Also

`sinc`

### Examples

1 2 3 4 5 6 7 |