# Get mean, min, max sigma and skew by group
options (digits = 3)
library (ISwR
data(energy)
data %>%
group_by(stature) %>%
summarize(
Mean = mean(expend),
Min = min(expend),
Max = max(expend),
Sigma = sd(expend),
Skew = skew(expend))
# Output
stature Mean Min Max Sigma Skew
<fct> <dbl> <dbl> <dbl> <dbl> <dbl>
1 lean 8.07 6.13 10.9 1.24 0.907
2 obese 10.3 8.79 12.8 1.40 0.587
Why does output stats vary in decimal places even when options (digits=3)
were set?
All the best
Thomas S.
[[alternative HTML version deleted]]
This is because options(digits=3) specifies the number of significant digits, not the number of decimal places. See ?options and search for digits.> a <- 12.345 > options(digits=4) > print(a)[1] 12.35> options(digits=5) > print(a)[1] 12.345> options(digits=2) > print(a)[1] 12>On Sat, Nov 23, 2024 at 7:53?AM tgs77m--- via R-help <r-help at r-project.org> wrote:> # Get mean, min, max sigma and skew by group > > options (digits = 3) > library (ISwR > data(energy) > > data %>% > group_by(stature) %>% > summarize( > Mean = mean(expend), > Min = min(expend), > Max = max(expend), > Sigma = sd(expend), > Skew = skew(expend)) > > # Output > > stature Mean Min Max Sigma Skew > <fct> <dbl> <dbl> <dbl> <dbl> <dbl> > 1 lean 8.07 6.13 10.9 1.24 0.907 > 2 obese 10.3 8.79 12.8 1.40 0.587 > > Why does output stats vary in decimal places even when options (digits=3) > were set? > > All the best > > Thomas S. > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > https://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >[[alternative HTML version deleted]]
?s 05:52 de 23/11/2024, tgs77m--- via R-help escreveu:> # Get mean, min, max sigma and skew by group > > options (digits = 3) > library (ISwR > data(energy) > > data %>% > group_by(stature) %>% > summarize( > Mean = mean(expend), > Min = min(expend), > Max = max(expend), > Sigma = sd(expend), > Skew = skew(expend)) > > # Output > > stature Mean Min Max Sigma Skew > <fct> <dbl> <dbl> <dbl> <dbl> <dbl> > 1 lean 8.07 6.13 10.9 1.24 0.907 > 2 obese 10.3 8.79 12.8 1.40 0.587 > > Why does output stats vary in decimal places even when options (digits=3) > were set? > > All the best > > Thomas S. > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide https://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.Hello, "Why does output stats vary in decimal places even when options (digits=3) were set?" Yes, they do but shouldn't they? I'm seeing all numbers with 3 digits. Display digits and rounding are not the same thing. Also, you don't need to load the package to have access to one of its data sets, data(energy, package = "ISwR") will load it. In this case, it's probably even better, "energy" is not an uncommon source for data and there might be data sets with the same name in other packages. Hope this helps, Rui Barradas -- Este e-mail foi analisado pelo software antiv?rus AVG para verificar a presen?a de v?rus. www.avg.com