From: Simulation of microarray data with realistic characteristics
S type | Type of the slide (single or two channel). |
---|---|
S spot | Model used for the spot: circle, Gaussian, hyperbolic. |
S pix | Maximum width/height of the area for the spot in pixels. |
S movprob | Probability for a spot to drift (move) from designated location. This parameter models random movement. See parameter B curve for systematic drift. |
S mov | Maximum allowed movement bias from designated location, movement in x-axis S x and y-axis S y are drawn from uniform distribution U (-S mov , S mov ). |
S μ | Mean radius of the simulated spot. Spot radius is drawn from N (S μ , ) distribution. |
| Allowed variation (variance) of the spot size. |
P | If set, print tip leaves a mark to the spot. |
P p | Probability for print tip mark to be visible in a spot. |
P h | Maximum height of the print tip mark, print tip height is drawn from U (0, P h ) distribution. |
P w | Maximum width of the print tip mark, print tip width is drawn from U (0, P w ) distribution. |
P b | Maximum of how much print tip mark is allowed to drift from spot center. Movement in x-axis P x and y-axis P y are drawn from U (-P b , P b ). |
C prob | Probability for a spot to suffer from a chord cut. |
C num | Maximum number of chord cuts from a spot. |
C cut | Maximum depth of the chord cut, cut depth is drawn from U (0, C cut ). |
N slides | Number of slides to be generated. |
N time | Time points when slides are made. This is relevant only for time series data. |
N channels | Number of channels (different dyes) on the slide. |
N spots | Total number of spots on the slide. |
N height | Number of rows of spots on the slide. |
N width | Number of columns of spots on the slide. |
B | Subarray layout on the slide i.e. number of (subarray)rows and (subarray)columns. |
B space | Space between individual subarrays on the slide. |
B curve | Parameter used to control the subarray curving (i.e. systematic drift in spot printing). |
B maxc | Maximum distance the bin is allowed to curve, curvature parameter is drawn from U (0, B maxc ). |
B spots | Number of spots in each subarray. |
B height | Number of rows in subarrays. |
B width | Number of columns in subarrays. |