Difference between revisions of "Microarray diagnostics"
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=Using apply= | =Using apply= | ||
<pre> | <pre> | ||
| + | # Ranges | ||
| + | apply(RG$R, 2, range, na.rm=TRUE) | ||
| + | apply(RG$G, 2, range, na.rm=TRUE) | ||
# Maximums | # Maximums | ||
apply(RG$R, 2, max, na.rm=TRUE) | apply(RG$R, 2, max, na.rm=TRUE) | ||
Revision as of 01:18, 6 September 2006
Summary statistics
Raw data should be on the 216 scale, with data ranges of (0, 65,535).
Examples using apply over arrays in an RGList.
Using apply
# Ranges apply(RG$R, 2, range, na.rm=TRUE) apply(RG$G, 2, range, na.rm=TRUE) # Maximums apply(RG$R, 2, max, na.rm=TRUE) apply(RG$Rb, 2, max, na.rm=TRUE) apply(RG$G, 2, max, na.rm=TRUE) apply(RG$Gb, 2, max, na.rm=TRUE) # Examining backgrounds that are higher than foreground apply(RG$R < RG$Rb, 2, sum, na.rm=TRUE) apply(RG$G < RG$Gb, 2, sum, na.rm=TRUE)
