Displaying 20 results from an estimated 10000 matches similar to: "Aggregate over multiple and unequal column length data frames"
2018 Feb 27
3
Aggregate over multiple and unequal column length data frames
Thank you Pikal and Bert. My apology for posting parts of my previous
email in HTML. Bert's suggestion will work but i am wondering if there
is an alternative
especially in the case where the data frames are big; that is the
difference in lengths among them is large. Below is a list of sample
date frames and desired result.
EK
2018 Feb 23
0
Aggregate over multiple and unequal column length data frames
Hi
Your example is rather confusing - partly because HTML formating, partly because weird coding.
You probably could concatenate your data frames e.g. by rbind or merge and after that you could try to aggregate them somehow.
I could construct example data.frames myself but most probably they would be different from yours and also the result would not be necessary the same as you expect.
You
2018 Jan 08
2
Replace NAs in split lists
You can enforce these assumptions by sorting on multiple columns, which
leads to
na.locf(df1[ order(df1$ID,df1$Value), ])
On Mon, Jan 8, 2018 at 4:19 PM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us>
wrote:
> Yes, you are right if the IDs are always sequentially-adjacent and the
> first non-NA value appears in the first record for each ID.
> --
> Sent from my phone. Please
2018 Jan 08
0
Replace NAs in split lists
"Enforce" is overstating it... results will differ if there are no non-NA values for a given ID, and there is a potential further discrepancy if there are multiple non-NA values. But these issues were not identified by the OP, so may not be relevant in their case.
--
Sent from my phone. Please excuse my brevity.
On January 8, 2018 6:41:33 AM PST, Eric Berger <ericjberger at
2017 Aug 16
5
strange behaviour read.table and clipboard
Hi Duncan
The simples spreadsheet is:
Put a name in the cell, let say "a1"
Put number e.g. 1 below "a1"
Copy the number to enough rows
Select this column and press ctrl-c
result is
> temp<- read.delim("clipboard")
> str(temp)
'data.frame': 1513 obs. of 1 variable:
$ a1: Factor w/ 2 levels "1","a1": 1 1 1 1 1 1 1 1 1 1 ...
2017 Jul 10
4
fit lognorm to cdf data
Dear all
I am struggling to fit data which form something like CDF by lognorm.
Here are my data:
proc <- c(0.9, 0.84, 0.5, 0.16, 0.1)
size <- c(0.144, 0.172, 0.272, 0.481, 0.583)
plot(size, proc, xlim=c(0,1), ylim=c(0,1))
fit<-nls(proc~SSfpl(size, 1, 0, xmid, scal), start=list(xmid=0.2, scal=.1))
lines(seq(0,1,.01), predict(fit, newdata=data.frame(sito=seq(0,1,.01))), col=2)
I tried
2017 Jul 04
6
R and UBUNTU startup
Dear all
I have 3 questions. Due to some reason I switched from Vista to Ubuntu on home PC. I was used to start with Rgui.exe. However I am not able to find it under Ubuntu and R starts as terminal (probably Rterm).
Question 1. Is Rgui.exe available on linux?
In Windows doc folder I can find manuals, however I did not find doc folder in Ubuntu. I found somewhere that manuals need to be
2018 Jan 08
2
Replace NAs in split lists
Hi
With the example, na.locf seems to be the easiest way.
> library(zoo)
> na.locf(df1)
ID ID_2 Firist Value
1 a aa TRUE 2
2 a ab FALSE 2
3 a ac FALSE 2
4 b aa TRUE 5
5 b ab FALSE 5
Cheers
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Jeff
> Newmiller
> Sent: Monday, January
2018 Feb 08
2
plotting the regression coefficients
Hi Petr;
Thanks for your reply. It is much appreciated. A small example is given
below for 4 independent and 4 dependent variables only. The values given
are regression coefficients.I have looked ggplot documents before writing
to you. Unfortunately, I could not figure out as my experience in ggplot is
ignorable
Regards.
Greg
y1 y2 y3 y4
x1 -0.19 0.40 -0.06 0.13
x2 0.45 -0.75 -8.67 -0.46
x3
2018 Feb 08
2
plotting the regression coefficients
Hi Petr;
Thanks so much. Exactly this is what I need. I will play to change color
and so on but this backbound is perfect to me. I do appreciate your help
and support.
Regards,
Greg
On Thu, Feb 8, 2018 at 1:29 PM, PIKAL Petr <petr.pikal at precheza.cz> wrote:
> Hi
>
> I copied your values to R, here it is
>
>
>
> > dput(temp)
>
>
>
> temp <-
2017 Aug 17
2
strange behaviour read.table and clipboard
Hi
> -----Original Message-----
> From: Robert Baer [mailto:rbaer at atsu.edu]
> Sent: Wednesday, August 16, 2017 3:04 PM
> To: PIKAL Petr <petr.pikal at precheza.cz>; Duncan Murdoch
> <murdoch.duncan at gmail.com>
> Cc: r-devel at r-project.org
> Subject: Re: [Rd] strange behaviour read.table and clipboard
>
> You said, "put a name in the cell".
2018 Jan 08
0
Replace NAs in split lists
I just came up with a solution right after i posted the question, but
i figured there must be a better and shorter one.than my solution
sdf1[[1]][1,4]<-lapplyresults[[1]]
sdf1[[2]][1,4]<-lapplyresults[[2]]
EK
On Sun, Jan 7, 2018 at 10:13 PM, Ek Esawi <esawiek at gmail.com> wrote:
> Hi all--
>
> I stumbled on this problem online. I did not like the solution given
> there
2018 Feb 16
2
Putting 733 discrete categories on Y-axis in qqplot2 as they are
Hi Petr;
I would like to get a plot with names as they are in the original file.
They are chemical names and I have 733 in the my file. For example, let me
give to chemical names "*2-hydroxybutyrate/2-hydroxyisobutyrate*" and
"*palmitoyl-arachidonoyl-glycerol
(16:0/20:4) [1]**" .So, what should I put [c(2,3,1)] part in the command:
iris$MySpecies<-factor(iris$Species,
2017 Aug 15
2
strange behaviour read.table and clipboard
Dear all
I used to transfer data from excel to R by simple ctrl-c and read.delim("clipboard") construction. I know it is a bad practice but it is easy and for quick exploratory work it is OK. However after changing to new R devel few days ago I encountered weird behaviour. I tried one or two columns.
In case of 2 columns, header is repeated after 526 items
>
2017 Aug 08
2
how to extract individual values from varcomp?
Hello,
I am trying to use varcomp to decompose the variance across multiple
nested levels on a lme object. I am able to successfully do this and
when I view the varcomp object I can see the individual values /
estimates for the variance at different levels.
However, I want to be able to extract each of them separately, as I
need to build a confidence interval using bootstrapping on the sample
2018 Feb 15
2
Putting 733 discrete categories on Y-axis in qqplot2 as they are
Hi all;
I have 733 discrete categories that will go on y-axis in ggplot2. I used
the following command to put the name of x-axis.
scale_x_discrete (limits = c("SI", "HOMAIR",
"AIR","HOMAB","SG","DI","FI","FG"))
Since there are only 8 categories on x it was easy to do. Is there any way
to do the same for 733 discrete
2017 Oct 11
6
changing "," to "." in data.frame
Dear friends - I have a data.frame with "," instead of "." and found the
discussion
http://r.789695.n4.nabble.com/How-to-replace-all-commas-with-semicolon-in-a-string-tt4721187.html#a4721192
so copying the code of Ulrik(I hope:-)) I tried
(making some data)
AX <-
2017 Jul 04
0
R and UBUNTU startup
I did the same transition, facing the same issues, so I settled for installation of RKWard. This pretty much reproduces my previous experience with Tinn-R and the Rgui.
HTH
Ruben
________________________________
Ruben H. Roa-Ureta, Ph. D.
Senior Scientist,
Center for Environment and Water, Marine Studies Section,
King Fahd University of Petroleum and Minerals,
KFUPM Box 1927, Dhahran 31261,
2017 Jul 10
0
fit lognorm to cdf data
How about
proc <- c(0.9, 0.84, 0.5, 0.16, 0.1)
size <- c(0.144, 0.172, 0.272, 0.481, 0.583)
plot(size, proc, xlim=c(0,1), ylim=c(0,1))
fit<-nls(proc~plnorm(size, log(xmid), sdlog, lower=FALSE), start=list(xmid=0.2, sdlog=.1))
summary(fit)
lines(fitted(fit)~size)
-pd
> On 10 Jul 2017, at 16:27 , PIKAL Petr <petr.pikal at precheza.cz> wrote:
>
> Dear all
>
> I am
2017 Jun 29
2
Changing ggplot2 legend key/title to custom text
Hi all,
ok I have this issue:
I want to change my graphs legends to custom text, often requiring the use of superscripts/subscripts
I tried to use this instruction I found on stack overflow:
labs(x = "R(Ohm)", y= "CDF", aesthetic= " Content (%)" )
but it wont' seem to work.
Also tried bquote for super/ subscripts
xlab(bquote(~x~/(~x~ + ~MO[2]~)*