View dataset
print(mydata)
function estimatePercentageErrors without options (by default conf.level 95%)
library(pcbars)
estimatePercentageErrors(mydata)

estimatePercentageErrors with option conf.level (80%)
library(pcbars)
estimatePercentageErrors(mydata, conf.level = 0.8)

estimatePercentageErrors with option conf.level (80%) and coord.flip
library(pcbars)
estimatePercentageErrors(mydata, conf.level = 0.8, coord.flip = TRUE)

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