plot.t2 {sma} | R Documentation |
Plots of two-sample t-statistics, |t-numerator| and t-denominator against average A, and plot of |t-numerator| against t-denominator. For each spot on a given slide, A = log_2(R*G)/2, where (R,G) denotes the red and green fluorescence intensity pair. Points with t-statistics exceeding user defined thresholds are highlighted.
plot.t2(x, main.title="T plots", low=-5, high=5,...)
x |
output from the function stat.t2 . |
main.title |
title for the plot. |
low |
lower threshold for t-statistic: points with t<low are colored in green. |
high |
upper threshold for t-statistic: points with t>high are colored in red. |
... |
additional graphical parameters |
Sandrine Dudoit, sandrine@stat.berkeley.edu
Yee Hwa Yang, yeehwa@stat.berkeley.edu
stat.t2
, t2stat.func
,
plot
, t.test
.
data(MouseArray) # mouse.setup <- init.grid() # mouse.data <- init.data() ## see \emph{init.data} # mouse.lratio <- stat.ma(mouse.data, mouse.setup) ## Calculation of t-statistics ## cl <- c(rep(1,3), rep(2,3)) ## mouse.t2 <- stat.t2(mouse.lratio, cl) ## Diagnostic plots plot.t2(mouse.t2, "Mouse")