Re: [R] Rounding and printing

2009-10-29 Thread David Winsemius 


On Oct 29, 2009, at 12:29 PM, Alan Cohen wrote:


Hello,

I am trying to print a table with numbers all rounded to the same  
number of digits (one after the decimal), but R seems to want to not  
print ".0" for integers.  I can go in and fix it one number at a  
time, but I'd like to understand the principle.  Here's an example  
of the code.  The problem is the 13th element, 21 or 21.0:

nvb_deaths <- round(ss[,10]/100,digits=1)
nvb_deaths

[1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0


?sprintf  # fmt = "%1.1f"

 nvb_dths <- paste(sprintf("%1.1f",  
nvb_deaths)," (",round(100*nvb_deaths/ 
nvb_deaths[1],digits=1),"%)",sep="")


> nvb_dths
 [1] "56.5 (100%)"  "1.6 (2.8%)"   "0.2 (0.4%)"   "3.9 (6.9%)"   "0.1  
(0.2%)"   "2.2 (3.9%)"   "0.2 (0.4%)"
 [8] "2.6 (4.6%)"   "1.5 (2.7%)"   "4.1 (7.3%)"   "1.1 (1.9%)"   "6.1  
(10.8%)"  "21.0 (37.2%)"



nvb_dths <- paste(nvb_deaths," (",round(100*nvb_deaths/ 
nvb_deaths[1],digits=1),"%)",sep="")

nvb_dths
[1] "56.5 (100%)" "1.6 (2.8%)"  "0.2 (0.4%)"  "3.9 (6.9%)"  "0.1  
(0.2%)"  "2.2 (3.9%)"
[7] "0.2 (0.4%)"  "2.6 (4.6%)"  "1.5 (2.7%)"  "4.1 (7.3%)"  "1.1  
(1.9%)"  "6.1 (10.8%)"

[13] "21 (37.2%)"

print(nvb_deaths,digits=1)

[1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0
paste(print(nvb_deaths,digits=1)," (",round(100*nvb_deaths/ 
nvb_deaths[1],digits=1),"%)",sep="")

[1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0
[1] "56.5 (100%)" "1.6 (2.8%)"  "0.2 (0.4%)"  "3.9 (6.9%)"  "0.1  
(0.2%)"  "2.2 (3.9%)"
[7] "0.2 (0.4%)"  "2.6 (4.6%)"  "1.5 (2.7%)"  "4.1 (7.3%)"  "1.1  
(1.9%)"  "6.1 (10.8%)"

[13] "21 (37.2%)"

I'm running R v2.8.1 on Windows.  Any help is much appreciated.

Cheers,
Alan Cohen

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David Winsemius, MD
Heritage Laboratories
West Hartford, CT

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Re: [R] Rounding and printing

2009-10-29 Thread Karl Ove Hufthammer 
On Thu, 29 Oct 2009 12:29:42 -0400 Alan Cohen  
wrote:
> I am trying to print a table with numbers all rounded to the same 
> number of digits (one after the decimal), but R seems to want to not 
> print ".0" for integers.

'round' only rounds numbers; it doesn't format them. Use 'formatC' 
instead. Example:

> x=c(1.234, 20.31, 25, 0.7)
> formatC(x, digits=1, format="f")
[1] "1.2"  "20.3" "25.0" "0.7" 

'prettyNum' may also be useful.

-- 
Karl Ove Hufthammer

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[R] Rounding and printing

2009-10-29 Thread Alan Cohen 
Hello,

I am trying to print a table with numbers all rounded to the same number of 
digits (one after the decimal), but R seems to want to not print ".0" for 
integers.  I can go in and fix it one number at a time, but I'd like to 
understand the principle.  Here's an example of the code.  The problem is the 
13th element, 21 or 21.0:
>nvb_deaths <- round(ss[,10]/100,digits=1)   
> nvb_deaths
 [1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0
>nvb_dths <- paste(nvb_deaths," 
>(",round(100*nvb_deaths/nvb_deaths[1],digits=1),"%)",sep="")
> nvb_dths
 [1] "56.5 (100%)" "1.6 (2.8%)"  "0.2 (0.4%)"  "3.9 (6.9%)"  "0.1 (0.2%)"  "2.2 
(3.9%)" 
 [7] "0.2 (0.4%)"  "2.6 (4.6%)"  "1.5 (2.7%)"  "4.1 (7.3%)"  "1.1 (1.9%)"  "6.1 
(10.8%)"
[13] "21 (37.2%)" 
> print(nvb_deaths,digits=1)
 [1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0
> paste(print(nvb_deaths,digits=1)," 
> (",round(100*nvb_deaths/nvb_deaths[1],digits=1),"%)",sep="")
 [1] 56.5  1.6  0.2  3.9  0.1  2.2  0.2  2.6  1.5  4.1  1.1  6.1 21.0
 [1] "56.5 (100%)" "1.6 (2.8%)"  "0.2 (0.4%)"  "3.9 (6.9%)"  "0.1 (0.2%)"  "2.2 
(3.9%)" 
 [7] "0.2 (0.4%)"  "2.6 (4.6%)"  "1.5 (2.7%)"  "4.1 (7.3%)"  "1.1 (1.9%)"  "6.1 
(10.8%)"
[13] "21 (37.2%)" 

I'm running R v2.8.1 on Windows.  Any help is much appreciated.

Cheers,
Alan Cohen

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.