rotate2d | R Documentation |

Rotate to the direction of interest in polar coordinates by degree (e.g. pi/4).

```
rotate2d(T, degree = 0)
```

`T` |
a numeric matrix (normally z-score converted) with 2 columns. The rows are genes or phosphorylation sites and the columns are treatments vs control statistics. |

`degree` |
the direction to be tested for enrichment. Specified as degree from to the original direction. |

A rotated matrix with respect to the direction of interest.

```
# load the phosphoproteomics dataset
data(HEK)
# convert statistics into z-scores
HEK.zscores <- apply(HEK, 2, function(x){qnorm(rank(x)/(nrow(HEK)+1))})
# Rotate the matrix by 1/2 pi (i.e. down-regulation, dow-regulation).
HEK.rotated <- rotate2d(HEK.zscores, degree = pi/2)
```

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.