Displaying 20 results from an estimated 4000 matches similar to: "NA=NA"
2003 Feb 12
4
Interpolation
Dear all,
I have two vectors and connect the points by line segments:
x <- c(1990,1994,1995,1997)
y <- c(30,40,80,20)
plot(x,y,type="l")
I want to get the values of y's on these lines at missing x's,
i.e., at 1991,1992,1993,and 1996. Is there a simple way to do this?
Best regards,
Remigijus mailto:remigijus.lapinskas at maf.vu.lt
2003 Feb 28
2
optim
Dear all,
I have a function MYFUN which depends on 3 positive parameters TETA[1],
TETA[2], and TETA[3]; x belongs to [0,1].
I integrate the function over [0,0.1], [0.1,0.2] and
[0.2,0.3] and want to choose the three parameters so that
these three integrals are as close to, resp., 2300, 4600 and 5800 as
possible. As I have three equations with three unknowns, I expect the
exact fit, i.e., the SS
2005 Sep 29
2
priceIts
Dear All,
There is an example for the priceIts function (the its package) which
does not work for me as expected.
> ?priceIts
> x1 <- priceIts(instrument = c("^ftse"), start = "1998-01-01",
+ quote = "Close")
Error in validObject(.Object) : invalid class "its" object: Missing
values in dates
> x2 <-
2005 Mar 05
4
How to use "lag"?
Is it possible to fit a lagged regression, "y[t]=b0+b1*x[t-1]+e",
using the function "lag"? If so, how? If not, of what use is the
function "lag"? I get the same answer from y~x as y~lag(x), whether
using lm or arima. I found it using y~c(NA, x[-length(x)])). Consider
the following:
> set.seed(1)
> x <- rep(c(rep(0, 4), 9), len=9)
> y <-
2007 Jan 31
4
possible spam alert
The last two times I have originated message threads on R or
Bioconductor I have received the message included below from someone
named Patrick Connolly. Both times I was the originator of the message
thread and used what I thought was a unique subject line that explained
as best I could what my question was. Patrick seems to be implying that
I am abusing the R and BioC help newsgroups in this
2001 Sep 06
1
East European
Dear List,
There has just been this question (as well as the answer to it) in the S list:
> I would like to put some text in plots... but in french. How can I
> write accented letters?
> I suppose that there is a possibility similar as the one which
> works in LaTeX, isn't it?
What about R (for Windows and in East European languages)? Specifically,
how can I give a title like
2007 May 07
4
Mardia's multivariate normality test
Dear all,
I got this error message
> library(dprep)
> mardia(Savg)
Error in cov(data) : 'x' is empty
But with the same data, I got
> library(mvnormtest)
> mshapiro.test(Savg)
Shapiro-Wilk normality test
data: Z
W = 0.9411, p-value = 0.6739
What does the error message "Error in cov(data) : 'x' is empty" mean? Thanks a lot!
Jiao
2012 Feb 10
3
problem subsetting data frame with variable instead of constant
Hello,
I've encountered a very weird issue with the method subset(), or maybe this
is something I don't know about said method that when you're subsetting
based on the columns of a data frame you can only use constants (0.1, 2.3,
2.2) instead of variables?
Here's a look at my data frame called 'ea.cad.pwr':
*>ea.ca.pwr[1:5,]
MAF OR POWER
1 0.02 0.01 0.9999
2 0.02
2010 Nov 29
2
FW: how to use by() ?
Thank you for the suggestion, Bill. The result is not quite what I would like. Here's sample code for you or anyone else who may be interested:
Al1 = c('A','C','C','C')
Al2 = c('G','G','G','T')
Freq1 = c(0.0078,0.0567,0.9434,0.9908)
MAF = c(0.0078,0.0567,0.0566,0.0092)
m1 = data.frame(Al1=Al1,
2003 Jan 27
0
Please begin a new subject if your post isn't a response to a previous one
Most mornings, I have over a screenful of messages mostly from R-help
and it's very useful to have them threaded. However, the usefulness
of threading is lost when posters reply to a message and then change
the subject instead of creating a new message.
People who don't have a mail client that can display email in threads
are probably unaware that this sort of thing can happen in ones
2017 Nov 18
0
Complicated analysis for huge databases
Something like the following?
AllMAFs <- list()
for (i in length(SeparatedGroupsofmealsCombs) {
AllMAFs[[i]] <- apply(SeparatedGroupsofmealsCombs[[i]], 2, function(x)maf(tabulate(x+1)))
}
(untested, of course)
Also the solution is a bit generic since I don't know what the output of maf() looks like in your case, and I don't understand why you use tabulate because I would have
2017 Nov 18
0
Complicated analysis for huge databases
On 18/11/2017 4:40 PM, Allaisone 1 wrote:
>
> The loop :
>
>
> AllMAFs <- list()
>
> for (i in length(SeparatedGroupsofmealsCombs) {
> AllMAFs[[i]] <- apply( SeparatedGroupsofmealsCombs[[i]], 2, function(x)maf( tabulate( x+1) ))
> }
>
>
> gives these errors (I tried this many times and I'm sure I copied it entirely) :-
>
> Error in
2017 Nov 18
2
Complicated analysis for huge databases
Although the loop seems to be formulated correctly I wonder why
it gives me these errors :
-object 'i' not found
- unexpected '}' in "}"
the desired output is expected to be very large as for each dataframe in the list of dataframes I expect to see maf value for each of the 600 columns! and this is only for
for one dataframe in the list .. I have around 150-200
2017 Nov 18
0
Complicated analysis for huge databases
> On Nov 18, 2017, at 1:52 AM, Allaisone 1 <allaisone1 at hotmail.com> wrote:
>
> Although the loop seems to be formulated correctly I wonder why
> it gives me these errors :
>
> -object 'i' not found
> - unexpected '}' in "}"
You probably did not copy the entire code offered. But we cannot know since you did not "show your code",
2017 Nov 19
1
Complicated analysis for huge databases
Thanks but a new error appeared with the loop :
Error in x + 1 : non-numeric argument to binary operator
I think this can be solved by converting columns (I,II,II,..600) into "numeric" instead of
the current "int" type as shown below in the structure of "33_55" dataframe .
$ 33_55:'data.frame': 256 obs. of 600 variables:
..$ MealsCombinations
2017 Nov 18
3
Complicated analysis for huge databases
The loop :
AllMAFs <- list()
for (i in length(SeparatedGroupsofmealsCombs) {
AllMAFs[[i]] <- apply( SeparatedGroupsofmealsCombs[[i]], 2, function(x)maf( tabulate( x+1) ))
}
gives these errors (I tried this many times and I'm sure I copied it entirely) :-
Error in apply(SeparatedGroupsofmealsCombs[[i]], 2, function(x) maf(tabulate(x + :
object 'i' not found
> }
2017 Nov 18
2
Complicated analysis for huge databases
Thanks Boris , this was very helpful but I'm struggling with the last part.
1) I combined the first 2 columns :-
library(tidyr)
SingleMealsCode <-unite(MyData, MealsCombinations, c(MealA, MealB), remove=FALSE)
SingleMealsCode <- SingleMealsCode[,-2]
2) I separated this dataframe into different dataframes based on "MealsCombination"
column so R will recognize each meal
2004 Aug 29
1
predict(arima)
Dear All,
R 1.9.1, Windows
When copying and pasting a few lines from the 'predict.Arima' help, I
get an error message:
> data(lh)
> predict(arima(lh, order = c(3,0,0)), n.ahead = 12)
Error in eval(expr, envir, enclos) : Object "xreg" not found
On the other hand, the following is OK:
> data(lh)
> predict(arima0(lh, order = c(3,0,0)), n.ahead = 12)
$pred
Time
2005 Jul 15
1
2D contour predictions
Hi All
I have been fitting regression models and would now like to produce some
contour & image plots from the predictors.
Is there an easy way to do this? My current (newbie) experience with R
would suggest there is but that it's not always easy to find it!
f3 <- lm( fc ~ poly( speed, 2 ) + poly( torque, 2 ) + poly( sonl, 2 ) +
poly( p_rail, 2 ) + poly( pil_sep, 2 ) + poly( maf, 2
2017 Nov 10
0
Calculating frequencies of multiple values in 200 colomns
Thank you for your effort Bert..,
I knew what is the problem now, the values (1,2,3) were only an example. The values I have are 0 , 1, 2 . Tabulate () function seem to ignore calculating the frequency of 0 values and this is my exact problem as the frequency of 0 values should also be calculated for the maf to be calculated correctly.
________________________________
From: Bert Gunter