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create unsorted Pareto chart
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#create unsorted Pareto chart | |
#depend on library qcc | |
pareto.chart2 <- function (x, unsorted=TRUE, | |
ylab = "Frequency", ylab2 = "Cumulative Percentage", | |
xlab, cumperc = seq(0, 100, by = 25), ylim, main, col = heat.colors(length(x)), | |
plot = TRUE, ...) | |
{ | |
call <- match.call(expand.dots = TRUE) | |
varname <- deparse(substitute(x)) | |
x <- as.table(x) | |
if (length(dim(x)) > 1) | |
stop("only one-dimensional object (table, vector, etc.) may be provided") | |
if(!unsorted){x <- sort(x, decreasing = TRUE, na.last = TRUE)} # revised part | |
cumsum.x <- cumsum(x) | |
cumperc <- cumperc[cumperc >= 0 & cumperc <= 100] | |
q <- quantile(seq(0, max(cumsum.x, na.rm = TRUE), by = max(cumsum.x, | |
na.rm = TRUE)/100), cumperc/100) | |
tab <- cbind(x, cumsum.x, x/max(cumsum.x, na.rm = TRUE) * | |
100, cumsum.x/max(cumsum.x, na.rm = TRUE) * 100) | |
colnames(tab) <- c("Frequency", "Cum.Freq.", "Percentage", | |
"Cum.Percent.") | |
names(dimnames(tab)) <- c("", paste("\nPareto chart analysis for", | |
varname)) | |
if (plot) { | |
if (missing(xlab)) | |
xlab <- "" | |
if (missing(ylim)) | |
ylim <- c(0, max(cumsum.x, na.rm = TRUE) * 1.05) | |
if (missing(main)) | |
main <- paste("Pareto Chart for", varname) | |
if (missing(col)) | |
col <- heat.colors(length(x)) | |
w <- max(sapply(names(x), nchar)) | |
if (is.null(call$las)) | |
las <- 3 | |
else las <- call$las | |
if (is.null(call$mar)) { | |
if (las == 1) | |
mar <- c(1, 1, 0, 2) | |
else mar <- c(log(max(w), 2), 0, 0, 2) | |
} | |
else mar <- call$mar | |
oldpar <- par(mar = pmax(par("mar") + mar, c(4.1, 4.1, | |
3.1, 4.1)), las = las, cex = qcc.options("cex"), | |
no.readonly = TRUE) | |
on.exit(par(oldpar)) | |
pc <- barplot(x, width = 1, space = 0.2, main = main, | |
ylim = ylim, ylab = ylab, xlab = xlab, yaxt = "n", | |
col = col, ...) | |
abline(h = q, col = "lightgrey", lty = 3) | |
rect(pc - 0.5, rep(0, length(x)), pc + 0.5, x, col = col) | |
lines(pc, cumsum.x, type = "b", cex = 0.7, pch = 19) | |
box() | |
axis(2, las = 3) | |
axis(4, at = q, las = 3, labels = paste(cumperc, "%", | |
sep = "")) | |
mtext(ylab2, 4, line = 2.5, las = 3) | |
} | |
return(tab) | |
} |
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Example
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pareto.chart {qcc}