# Import non-rejection rates

### Description

Imports non-rejection rates from an external flat file.

### Usage

1 | ```
qpImportNrr(filename, nTests)
``` |

### Arguments

`filename` |
name of the flat file with the data on the non-rejection rates. |

`nTests` |
number of tests performed in the estimation of these non-rejection rates. |

### Details

This function expects a flat file with three tab-separated columns corresponding to, respectively, 0-based index of one of the variables, 0-based index of the other variable, number of non-rejected tests for the pair of variables of that row in the text file. An example of a few lines of that file would be:

1 2 3 4 5 | ```
6 3 95
6 4 98
6 5 23
7 0 94
7 1 94
``` |

After reading the file the function builds a matrix of non-rejection rates by
dividing the number of non-rejected tests by `nTests`

. Note that if the flat
file to be imported would eventually have directly the rates instead of the
number of tests, these can be also imported by setting `nTests=1`

.

This function is thought to be used to read files obtained from the standalone
parallel version of `qpNrr`

which can be downloaded from
http://functionalgenomics.upf.edu/qp.

### Value

A symmetric matrix of non-rejection rates with the diagonal set to the `NA`

value.

### Author(s)

R. Castelo and A. Roverato

### References

Castelo, R. and Roverato, A. A robust procedure for
Gaussian graphical model search from microarray data with p larger than n,
*J. Mach. Learn. Res.*, 7:2621-2650, 2006.

### See Also

`qpNrr`

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