R version 2.5.0 (2007-04-23)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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Error in options(device = x11) : object "x11" not found
> sampDat <- read.csv(file="http://www.nd.edu/~steve/Rcourse/hmwrkData/sampleDataFrame.csv")
> sampDat[1:2, 1:3]
   X R1 R2
1 S1  B  C
2 S2  A  A
> 
> 
> 
> help.start()
Making links in per-session dir ...
If '/usr/bin/open' is already
    running, it is *not* restarted,
    and you must switch to its
    window.
Otherwise, be patient ...
> subQuant <- function(x) {}
> subQuant <- function(x) {
+ q1 <- quantile(x, .25)
+ q3 <- quantile(x,.75)
+ y <- x[x >= q1 & x <= q3]
+ y }
> x1 <- rnorm(10)
> summary(x1)
   Min. 1st Qu.  Median    Mean 3rd Qu. 
-0.4916 -0.4213  0.2179  0.2588  0.7741 
   Max. 
 1.7500 
> class(summary(x1))
[1] "table"
> summary(x1)[2]
1st Qu. 
-0.4213 
> countChar <- function(a,s) {
+ mat <- a[a==s]
+ length(mat)
+ }
> rownames(sampDat) <- sampDat[,1]
> sampDat[ 1:3, 1:3]
    X R1 R2
S1 S1  B  C
S2 S2  A  A
S3 S3  C  C
> sampDat1 <- sampDat[ ,-1]
> sampDat1[1:3, 1:3]
   R1 R2 R3
S1  B  C  C
S2  A  A  A
S3  C  C  A
> dim(sampDat1)
[1] 60 50
> numB <- integer(60)
> names(numB) <- rownames(sampDat1)
> for( i in 1:60) {
+ numB[i] <- countChar(sampDat1[i,], "B")
+ }
> numB[1:6]
S1 S2 S3 S4 S5 S6 
14  7  6  6  7 10 
> numB1 <- unlist(lapply(1:60, function(x) {
+ countChar(sampDat1[x,], "B") }))
> numB1[1:6]
[1] 14  7  6  6  7 10
>