Hi Marc and Team,
Apology for the late reply.
I went through the github code for WriteXLS and accordingly passed required
arguments. Its working fine now. I am able to create a excel workbook with
multiple csv's. By Merge I mean create a excel workbook by adding multiple
csv's as different sheets
Hi,
I would like to ask a question about time series.
I am trying to convert my data into time series data.
I have hourly data from “2015-12-18 00:00” to “2017-10-24 23:00”
I am trying the following codes but they are not working.
Could you help me out?
tseri <- ts(data ,seq(from=as.POSIXct("2015
So I am trying to use the mle command (from stats4 package) to estimate a
number of parameters using data but it keeps throwing up this error message:
Error in solve.default(oout$hessian) :
Lapack routine dgesv: system is exactly singular: U[1,1] = 0
This error sometimes indicates that the list
You are right.
> On Nov 6, 2017, at 6:47 PM, Bert Gunter wrote:
>
> Boris:
>
> "As others have remarked, for added efficiency with large datasets we often
> use functions from the apply() family, rather than for-loops."
>
> That is generally false, though it is a common misconception. App
Boris:
"As others have remarked, for added efficiency with large datasets we often
use functions from the apply() family, rather than for-loops."
That is generally false, though it is a common misconception. Apply-type
functions are used to maintain fidelity -- and for some, clarity -- to a
funct
Matti -
Since you are asking about looping through a column, not looping across
columns, it is simply the following:
# Note: data.frame() turns strings into factors by default.
myDF <- data.frame(type = c("a", "j", "a", "a", "j"),
weight = c(12.3, 6.8, 10.5, NA, "5.5"))
myDF
Hello,
If you want to loop through the columns of a data.frame you can do
for(i in names(df)){
[code]
}
Another way would be
lapply(names(df), function(somecol) class(df[[somecol]]))
where class(df[[somecol]]) is just an example, you would use whatever
fits your needs.
When you say tha
Maybe you are thinking of the levels function rather than the names function?
Which still presumes the column is a factor column, when it might actually be a
character column (in which case you might use the unique function). Again, a
reproducible example would stop the guessing.
--
Sent from
All data frames "look like" matrices, but none of them "are" matrices. I think
we need you to follow the Posting Guide and supply an R reproducible example
that gives us a concrete idea what the data structure is that you are working
with, and an example of what you expect to get out of the code
Except that syntax is wrong:
> d <- data.frame (a = 1:3, b = letters[1:3])
> names(d$a)
NULL
-- Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Mon, No
It’s sometimes faster to ask from someone who has already learnt the syntax.
In this case one has to do e.g.
names(data$somecol)
To get the collection and then iteration through it is almost like in Python:
for(i in names(data$somecol)) {
# do something
}
> Bert Gunter kirjoitti 6.11.2017 k
Thanks for your reply. Yes, installed (reinstalled) and loaded. I am a bit
baffled...
Sincerely,
Milu
On Mon, Nov 6, 2017 at 6:30 PM, Bert Gunter wrote:
> Do you have the mgcv package installed (I think it's part of the standard
> distro, though) /loaded? ziP is there, not in BAM.
>
> Other th
Prrobably also worth mentioning for this sort of thing is the "tidyverse"
machinery, for which the RStudio site should probably be your first port of
call. This will however require learning alternative, and probably
additional, paradigms.
-- Bert
Bert Gunter
"The trouble with having an open m
Hi everyone,
We've recently launched data360r, now available on CRAN at
https://cran.r-project.org/web/packages/data360r/index.html
This package makes it easy to engage with the APIs of the TCdata360 and
Govdata360 open data platforms at https://tcdata360.worldbank.org/ and
https://govdata360.
Quantitative Risk Analysis with R
Fort Collins, Colorado, USA
December 4-7, 2017
This course will cover the core principles of quantitative risk analysis and
Monte Carlo simulation modeling. The focus of the course is on how to conduct
accurate and effective quantitative risk analyses, including
Time to go through a tutorial or two! -- This forum cannot replace such
self study.
Your query evidences some basic confusion, but ?tapply or the equivalent
lapply(split(...)) construct are most likely relevant.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people kee
How can I do a for loop that does to a data.frame column what:
for x in xs:
does in Python?
Obviously the data.frame column in question holds "levels". What if the
data.frame is in matrix form?
BR, Matti
__
R-help@r-project.org mailing list -- To
Do you have the mgcv package installed (I think it's part of the standard
distro, though) /loaded? ziP is there, not in BAM.
Other than that, sorry, no clue.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (
Dear all,
I am trying to use 'bam' to run the following generalized additive model:
###
m <- bam(result ~ factor(city) + factor(year) + lnpopulation +
s(lnincome_pc) + ,data=full_df,na.action=na.omit,family=ziP(theta = NULL,
link = "identity",b=0))
But getting the following error:
###
Error in
> On Nov 6, 2017, at 5:45 AM, Meghna Govil wrote:
>
> Thanks David. Could you show me how to do that in my example ?
Possibly:
kmsurvival_np <- survfit(Surv( tte, censored) ~ . , data=train1_na)
I say "possibly" because I don't know whether all the columns of `train1_na`
were included in th
You need to be more specific about what you mean by "merge" (read e.g. ?merge
and ?rbind) and show what you did already using a reproducible example
[1][2][3].
The fact that you mentioned sheets suggests you are writing to Excel files...
they can be troublesome for storing data (NA values, siz
Try putting your data.frame (train_na) as argument to the data=
parameter and then in the formula put the actual variable names but
without the train_na$ prefix.
On 06/11/2017 13:45, Meghna Govil via R-help wrote:
Thanks David. Could you show me how to do that in my example ?
Thanks,
Meghna
> On Nov 6, 2017, at 3:23 AM, Kamlesh Khollam
> wrote:
>
> Hi Team,
> I am tried "WriteXLS" package for merging 2 csv files. R script runs
> successfully but does not create CSVmerge file.
>
> Appreciate our help.
>
> Best Regards,
> Kamlesh Khollam
Hi,
You appear to be replying to a thr
Thanks David. Could you show me how to do that in my example ?
Thanks,
Meghna
> On Nov 6, 2017, at 12:58 AM, David Winsemius wrote:
>
> You should stop trying to use matrices on the RHS and using separate vectors
> to Surv. Instead use a data argument and have the names in your formula refer
Hi Team,
I am tried "WriteXLS" package for merging 2 csv files. R script runs
successfully but does not create CSVmerge file.
Appreciate our help.
Best Regards,
Kamlesh Khollam
[[alternative HTML version deleted]]
__
R-help@r-project.org mai
Thank you. This worked fine.
-Ursprungligt meddelande-
Från: David Winsemius [mailto:dwinsem...@comcast.net]
Skickat: den 5 november 2017 18:17
Till: Göran Bergqvist
Kopia: r-help@r-project.org
Ämne: Re: [R] Change colour of line in logi.hist.plot
> On Nov 5, 2017, at 6:03 AM, Göran Be
26 matches
Mail list logo
