arrayTrend {MANOR} | R Documentation |
The function arrayTrend
computes the spatial trend.
arrayTrend.default(Statistic, Col, Row, ...) arrayTrend.arrayCGH(arrayCGH, variable, ...)
Statistic |
Statistic to be smoothed. |
Col |
Vector of columns coordinates. |
Row |
Vector of rows coordinates. |
arrayCGH |
Object of class arrayCGH . |
variable |
Variable to be smooth. |
... |
Parameters to be passed to loess function. |
Spatial trend of microarray spots statistic.
Either a data frame with elements :
Trend |
|
Col |
|
Row |
or the element Trend
is added to the data.frame arrayValues
of the arrayCGH
object.
People interested in tools for array-CGH analysis can visit our web-page: http://bioinfo.curie.fr.
Philippe Hupé, Philippe.Hupe@curie.fr.
P. Neuvial, P. Hupé, I. Brito, S. Liva, E. Manié, C. Brennetot, A. Aurias, F. Radvanyi, and E. Barillot. Spatial normalization of array-CGH data. In preparation.
data(spatial) ## arrays with local spatial effects edgeTrend <- arrayTrend(edge, "LogRatio", span=0.03, degree=1, iterations=3, family="symmetric") arrayPlot(edgeTrend, "Trend", main="Spatial trend of array CGH", bar="v")