Displaying 20 results from an estimated 3000 matches similar to: "Printing 2 digits after decimal point"
2019 Mar 21
3
prettyNum digits=0 not compatible with scientific notation
R developers,
Seems I get a bad result ("%#4.0-1e" in particular) when trying to use prettyNum digits=0 with scientific notation. I tried on both my Linux box and on an online R evaluator and saw the same problem, so it's not limited to my box at least. I see the problem in both R 3.5.3 and R 3.3.2.
options(scipen=-100)
prettyNum(1, digits=0)
[1] "%#4.0-1e"
prettyNum(2,
2019 Mar 22
2
prettyNum digits=0 not compatible with scientific notation
FWIW, it doesn't seem to be happening on Mac OS:
> format(2^30, digits=0)
[1] "1.e+09"
> prettyNum(12345.6, digits=0)
[1] "1.e+04"
A glibc misfeature?
-pd
> On 22 Mar 2019, at 10:10 , Martin Maechler <maechler at stat.math.ethz.ch> wrote:
>
> Thank you, Robert for raising this here !
>
>>>>>> Robert McGehee
2018 May 25
4
options other than regex
Hi --
I'm looking for alternatives to regex for a fairly simply 'reformatting'
problem. Alternatives only because a lot of folks have trouble
parsing/interpreting regex expressions, and I'm looking for suggestions
for something more 'transparent'.
Here is an example of what I'm trying to do. Take the following string,
which I call x, and for each character in the
2018 May 25
0
options other than regex
Hi
I am not sure if it is more readable
> paste(paste(unlist(strsplit(x,"")),".", sep=""), collapse="")
[1] "1.0.1.1.0.1.1.1."
If you did not want last dot, it is a bit shorter.
> paste(unlist(strsplit(x,"")),collapse=".")
[1] "1.0.1.1.0.1.1.1"
>
Cheers
Petr
Tento e-mail a jak?koliv k n?mu p?ipojen?
2008 Oct 17
2
Beginner's question: number formatting
Hello R-helpers,
I have a problem with formatting a single number to show leading zeros.
For example, I want "2" displayed as "002".
My numbers have 1 to 3 digits and I would like them all to display 3
digits for printing. I know I could use "paste" in a loop with several
"if"s, but I was wondering if there is a single function that can do this.
I have
2002 May 13
1
prettyNum inserts leading commas (PR#1548)
Under R-1.5.0 on Solaris 2.6:
R> prettyNum(123456789, big.mark=",")
[1] ",123,456,789"
and that bad behavior (leading comma) spills into formatC as well:
R> formatC(123456789, digits=0, format="f", big.mark=",")
[1] ",123,456,789"
Looks to me like a bug in src/library/base/R/format.R, in function prettyNum:
B.[i.big] <-
2019 Mar 22
0
prettyNum digits=0 not compatible with scientific notation
Thank you, Robert for raising this here !
>>>>> Robert McGehee
>>>>> on Thu, 21 Mar 2019 20:56:19 +0000 writes:
> R developers,
> Seems I get a bad result ("%#4.0-1e" in particular) when trying to use prettyNum digits=0 with scientific notation. I tried on both my Linux box and on an online R evaluator and saw the same problem, so
2010 Mar 10
2
Placing the legend 'dynamically'
Hello,
does anybody know which command to consider when I'm trying to plot a
stacked barplot with a legend at the most empty portion of the graphic?
I've searched for it, and somebody stated to use the labcurve-command,
but I don't know how to produce stacked barplots with it.
Is there any possibility to plot a legend box "dynamically" (= in an
empty region) with the
2019 Mar 22
0
prettyNum digits=0 not compatible with scientific notation
>>>>> peter dalgaard
>>>>> on Fri, 22 Mar 2019 17:30:19 +0100 writes:
> FWIW, it doesn't seem to be happening on Mac OS:
>> format(2^30, digits=0)
> [1] "1.e+09"
>> prettyNum(12345.6, digits=0)
> [1] "1.e+04"
> A glibc misfeature?
It seems (and note we are talking about format.default()
2010 Aug 16
4
print numbers
Hi,
When I plot, the axis ticks are printed as "50.00 25.00 10.00 1.00 0.05
0.01", is there any way to print them as "50 25 10 1 0.05 0.01" instead?
Thanks
John
2025 May 23
1
Bug in prettyNum
? Fri, 23 May 2025 11:47:33 +0000
Marttila Mikko via R-devel <r-devel at r-project.org> ?????:
> When called with a numeric vector, the `replace.zero` argument is
> disregarded.
>
> > prettyNum(0, zero.print = "- ", replace.zero = TRUE)
> [1] "-"
> Warning message:
> In .format.zeros(x, zero.print, replace = replace.zero) :
>
2025 May 26
1
Bug in prettyNum
Thank you, Marttila and Ivan,
As the original author of prettyNum() {etc ..},
I will commit such a bug fix to R-devel (and probably port it to
R 4.5.0 patched) quite soon
(but not yet today).
Best regards,
Martin Maechler
>>>>> Ivan Krylov via R-devel
>>>>> on Fri, 23 May 2025 17:14:57 +0300 writes:
> ? Fri, 23 May 2025 11:47:33 +0000
>
2025 May 27
1
Bug in prettyNum
Thanks for the contribution Mikko!
For testing future patches, you can actually do it right in the web
browser, thanks to Heather Turner's R Dev Container, see instructions here
https://contributor.r-project.org/r-dev-env/container_setup/
Best
Toby
On Mon, May 26, 2025 at 6:28?PM Martin Maechler <maechler at stat.math.ethz.ch>
wrote:
> Thank you, Marttila and Ivan,
>
> As
2025 May 23
1
Formatting zeroes with prettyNum
Tim,
The purpose of the `replace.zero` argument is to allow longer replacements.
See for example the behaviour with a character vector input:
> prettyNum("0", zero.print = "- ", replace.zero = TRUE)
[1] "- "
I'm pretty sure this is a bug, and have now posted the relevant details on r-devel.
A fix would be below.
Best,
Mikko
diff --git
2025 May 23
1
Bug in prettyNum
Dear list,
I'd like to report a bug in `prettyNum()`. When called with a numeric vector, the `replace.zero` argument is disregarded.
> prettyNum(0, zero.print = "- ", replace.zero = TRUE)
[1] "-"
Warning message:
In .format.zeros(x, zero.print, replace = replace.zero) :
'zero.print' is truncated to fit into formatted zeros; consider 'replace=TRUE'
A
2025 May 23
1
Formatting zeroes with prettyNum
You fed it two characters, "dash" and "space" and it only wanted one character so it truncated to the first character and warned you that that's what it did.
If you had your space before the dash, it would have used that as your replacement character
> prettyNum(0, zero.print = " - ", replace = TRUE)
[1] " "
Warning message:
In .format.zeros(x,
2025 May 23
1
Formatting zeroes with prettyNum
Dear list,
Have I stumbled upon a bug, or am I holding `prettyNum()` wrong? Please see below.
Best,
Mikko
> prettyNum(0, zero.print = "- ", replace.zero = TRUE)
[1] "-"
Warning message:
In .format.zeros(x, zero.print, replace = replace.zero) :
'zero.print' is truncated to fit into formatted zeros; consider 'replace=TRUE'
> prettyNum(0, zero.print =
2002 Mar 13
1
Commas in formatC
formatC() is great for formatting numbers! But it would be even better if it
could optionally insert commas (or semicolons), e.g.
R> formatC(1234567.89, digits=2, format="f", commas=T)
[1] "1,234,567.89"
Here's a snippet of code that does that, which could more or less just be
inserted into at the end of formatC if any R-core guru were so inclined. "r"
2008 Aug 07
1
Bug in format.default(): na.encode does not have any effect for (PR#12318)
Hi!
If I use format() on numeric vector, na.encode argument does not have any e=
ffect. This
was reported before:
- https://stat.ethz.ch/pipermail/r-help/2007-October/143881.html
- http://tolstoy.newcastle.edu.au/R/e2/devel/06/09/0360.html
It works for other (say character) classes!
> format(c("a", NA), na.encode=3DTRUE)
[1] "a " "NA"
>
2009 Nov 13
2
format (PR#14062)
Full_Name: Dirk Jacob
Version: R 2.8.1 and 2.9.1
OS: Win XP
Submission from: (NULL) (153.96.32.62)
I want to convert numbers to strings
like:
> inputs= c(0.3+0*(1:12) )
> (format(inputs,digits=3,scientific=T,collapse=" "))
and it works
[1] "3e-01" "3e-01" "3e-01" "3e-01" "3e-01" "3e-01" "3e-01"