Displaying 20 results from an estimated 1269 matches for "significations".
2005 Jan 19
2
signif() generic
Dear list,
I'm trying to write a class for Gaussian error propagation of measured
values and their (estimated) errors,
> setClass("sec", representation(val="numeric", err="numeric"))
I've already successfully implemented basic arithmetics using mostly the
"Arith" group generics. But I'm running into trouble when trying to get
signif() to
2005 Apr 21
1
printCoefmat(signif.legend =FALSE) (PR#7802)
printCoefmat(signif.legend =FALSE) does not work properly. The option
"signif.legend = FALSE" is ignored as shown in the example below.
cmat <- cbind(rnorm(3, 10), sqrt(rchisq(3, 12)))
cmat <- cbind(cmat, cmat[,1]/cmat[,2])
cmat <- cbind(cmat, 2*pnorm(-cmat[,3]))
colnames(cmat) <- c("Estimate", "Std.Err", "Z value", "Pr(>z)")
#
2003 Mar 14
1
Formatting significant digits with trailing zeros
I need a function like signif(), but returns the rounded values as
character strings, formatted with trailing zeros where appropriate.
If anyone has one, I would sure appreciate a copy.
Thanks
-Don
Details:
signif() rounds a number to a specified number of significant digits,
for example:
> x <- c(2.503,2.477,0.1204)
> signif(x[1],3)
[1] 2.5
> signif(x[2],3)
[1] 2.48
2003 Feb 06
1
signif {base}: changes to scientific notation
PROBLEM
`signif' does change to scientic notation
at different levels depending on the number
of significant digits in the input.
This can generate tables where figures change
``irregularly'' from normal to scientific notation.
PROPOSAL
The change to the scientific notation should
be made only if the figure in scientific notation
- with potentially as
2011 Dec 08
2
Behavior of apply()
Suppose I have the following matrix
> class(cov_50)
[1] "matrix"
> cov_50
[,1] [,2]
[1,] 0.3201992 2.308084
[2,] 6.7312928 5.719641
I then use the following function via apply and get the desired output, a list
signif <- function(x) which(abs(x) > 1.96)
apply(cov_50, 1, signif)
> apply(cov_50, 1, signif)
[[1]]
[1] 2
[[2]]
[1] 1 2
However, I can't
2011 Oct 17
1
compressing/reducing data for plot
Hello,
I have simulation results in the form of
Time V I
0.000000000000e+000 7.218354344368e-001 5.224478627497e-006
1.000000000000e-009 7.218354344368e-001 5.224477718002e-006
2.000000000000e-009 7.218354344368e-001 5.224477718002e-006
4.000108361244e-009 7.218354344368e-001 5.224478627497e-006
8.000325083733e-009
2006 Nov 09
2
Single precision data behaviour with readBin()
Hi all,
I am running R version 2.4.0 (2006-10-03) on an i686 pc with Mandrake
10.2 Linux. I was given a binary data file containing single precision
numbers that I would like to read into R. In a previous posting,
someone suggested reading in such data as double(), which is what I've
tried:
> zz <- file(file, "rb")
> h1 <- readBin(con = zz, what = double(), n = 1, size
2005 Jun 06
6
Strange characters in 2.1.0?
Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1
Signif. codes: 0 <80><98>***<80><99> 0.001 <80><98>**<80><99> 0.01
<80><98>*<80> <99> 0.05 <80><98>.<80><99> 0.1 <80><98> <80><99> 1
Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1
hmm... they go away when I
2019 Mar 27
1
default for 'signif.stars'
Dear R-Devel,
As I am sure many of you know, a special issue of The American Statistician just came out, and its theme is the [mis]use of P values and the many common ways in which they are abused. The lead editorial in that issue mentions the 2014 ASA guidelines on P values, and goes one step further, by now recommending that the words "statistically significant" and related simplistic
2010 Oct 20
1
rounding up (always)
Hello!
I am trying to round the number always up - i.e., whatever the
positive number is, I would like it to round it to the closest 10 that
is higher than this number, the closest 100 that is higher than this
number, etc.
For example:
x<-3241.388
signif(x,1) rounds to the closest thousand, i.e., to 3,000, but I'd
like to get 4,000 instead.
signif(x,2) rounds to the closest hundred,
1997 May 27
1
R-alpha: signif( small , d) gives NA
signif(.) is a <primitive> function.
Unfortunately, I couldn't even find WHERE in the source,
signif(.) is defined.
Here are the symptoms:
xmin <- .Machine $ double.xmin
signif(xmin,3) #--> NA
umach <- unlist(.Machine)[paste("double.x", c("min","max"), sep='')]
for(dig in 1:10) {cat("dig=",dig,": ");
2005 May 22
3
comparison operator, decimals, and signif()
Hi, I recently spent quite a bit of time trouble
shooting a function that I had written only to
discover that the problem I was having was with the
comparison operator. I assumed that the following
would return TRUE:
> testMean <- 82.8 + 0.1
> testMean
[1] 82.9
> testMean == 82.9
[1] FALSE
Apparently this has to do with deciml places. Look:
> newTest <- 82.0
> newTest
[1]
2009 Dec 21
3
Signif. codes
My question is about the "Signif. codes" and the p-value, specifically, the
output when I run
summary(nameofregression.lm)
So you get this little key:
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
And on a regression I ran, next to the intercept data, I get '***'
Coefficients:
>
> Estimate Std. Error t value Pr(>|t|)
>
>
2008 Jun 02
6
significant digits (PR#9682)
I came to report this same bug and found it already in the trash, but
I slightly disagree with that assessment. If it's not a bug, then
perhaps it's a feature request. Comments at the end.
On Mon, May 14, 2007, Duncan Murdoch wrote:
>>On 13/05/2007 8:46 PM, scott.wilkinson at csiro.au wrote:
>>
>> In the example below round() does not report to the specified number of
2013 Oct 02
0
For numeric x, as.character(x) doesn't always match signif(x, 15)
I saw something like this.
> x <- 5180000000000003
> print(x, digits=20)
[1] 5180000000000003
> as.character(x)
[1] "5.18e+15"
I thought it was because, when x is numeric, as.character(x) represents x rounded to 15 significant digits.
> print(signif(x, 15), digits=20)
[1] 5180000000000000.0000
> as.numeric(as.character(x)) == signif(x, 15)
[1] TRUE
The documentation
2008 Feb 01
1
argument order for Math2 group functions in R 2.6.x (PR#10679)
Full_Name: Ben Hansen
Version: 2.6.1
OS: Windows
Submission from: (NULL) (66.93.3.101)
Hi,
In R 2.6.0 or 2.6.1 on Windows, I get the following upon opening the GUI (no
previous commands or special settings):
> signif(digits=4, x=1/3)
[1] 4
It seems to be taking 4 to be the "x" argument, the number to be rounded.
However, my understanding (perhaps mistaken) was that it should
2002 Feb 28
1
trying to build matrix for tests...
Okay, I stumped. I'm trying to build a matrix or data.frame that consists of
values by group. For example,
resid, group
574 0.536196370873122 E
575 0.93191093696265 E
576 -1.27116094894117 A
577 -1.05159666055027 A
578 0.398273458301184 D
579 0.586373126102573 E
580 0.806575304513802 E
581 0.897258393118338 E
582 0.342393324256838 D
583 0.781245511773227 E
I
2019 Mar 28
0
default for 'signif.stars'
Hi Martin,
I take your point - but I'd argue that significance stars are a clumsy
solution to the very real problem that you outline, and their inclusion as
a default sends a signal about their appropriateness that I would prefer R
not to endorse.
My preference (to the extent that it matters) would be to see the
significance stars be an option but not a default one, and the addition of
2014 Jan 06
1
Signif. codes
My question is about the "Signif. codes" , the output when I run
matcoef =cbind(fit$par, se.coef,tval,2*(1-pnorm(abs(tval))))
dimnames(matcoef)=list(names(tval),c("Estimate","Std.Error","t
value","pr(>|t|)"))
cat("\nCoefficient(s):\n")
printCoefmat(matcoef, digits=4, signif.stars = TRUE)
Coefficient(s):
Estimate
2009 Dec 22
1
Sweave: font problems with Signif. codes lines
[Environment: Win Xp, Miktex 2.7, R 2.9.2]
In an Sweave document, I'm displaying the results of car:::Anova()
tests, that look like this in the
generated .tex file:
\begin{Soutput}
Type III MANOVA Tests: Pillai test statistic
Df test stat approx F num Df den Df Pr(>F)
(Intercept) 1 0.86 90.38 4 60 <2e-16 ***
---
Signif. codes: 0 ?***? 0.001 ?**? 0.01 ?*? 0.05 ?.? 0.1 ? ? 1