Re: [R] Independent samples bootstrapped T-test : question

Hi Tahereh, In the code you provided, there seems to be a mistake in the calls to "sample" in that you haven't specified the "size" argument. You should have gotten an error there. Also, you have assigned both samples to the same variable name, so there will be no "boot.p" when the call to t-test

Re: [R] remove

Hi Jeff, Why do you say ave() is better suited *because* it always returns a vector that is just as long as the input vector? Is it because that feature (of equal length), allows match() to be avoided, and as a result, the subsequent subsetting is faster with very large datasets? Thanks,

Re: [R] Echos for comment line (with #)

On Sun, 12 Feb 2017, Steven Yen wrote: I need help with what may be a simple option in R (or Rstudio)--to receive an echo of a comment line. Running the following two-line script in plain R, # adding 1+2 I did get the echo: > # adding > 1+2 [1] 3 > However, running the same lines in

Re: [R] remove

The "by" function aggregates and returns a result with generally fewer rows than the original data. Since you are looking to index the rows in the original data set, the "ave" function is better suited because it always returns a vector that is just as long as the input vector: # I usually

Re: [R] [FORGED] Re: remove

On 12/02/17 18:36, Bert Gunter wrote: Basic stuff! Either subscripting or ?subset. There are many good R tutorials on the web. You should spend some (more?) time with some. Uh, Bert, perhaps I'm being obtuse (a common occurrence) but it doesn't seem basic to me. The only way that I can

Re: [R] Query - Merging and conditional replacement of values in a data frame

Or use rownames and subscripting? df1 <- read.table( text= "time v1 v2 v3 1 2 3 4 2 5 6 4 3 1 3 4 4 1 3 4 5 2 3 4 6 2 3 4 ",header=TRUE) df2 <- read.table( text= "time v11 v12 v13 3 112 3 4 4 112 3 4 ",header=TRUE) df3 <- df1 rownames(

Re: [R] remove

Hi Val, The by() function could be used here. With the dataframe dfr: # split the data by first name and check for more than one last name for each first name res <- by(dfr, dfr['first'], function(x) length(unique(x$last)) > 1) # make the result more easily manipulated res <- as.table(res)

Re: [R] remove

Basic stuff! Either subscripting or ?subset. There are many good R tutorials on the web. You should spend some (more?) time with some. Cheers, 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

[R] Echos for comment line (with #)

I need help with what may be a simple option in R (or Rstudio)--to receive an echo of a comment line. Running the following two-line script in plain R, # adding 1+2 I did get the echo: > # adding > 1+2 [1] 3 > However, running the same lines in RStudio, the comment line does not appear

[R] remove

Hi all, I have a big data set and want to remove rows conditionally. In my data file each person were recorded for several weeks. Somehow during the recording periods, their last name was misreported. For each person, the last name should be the same. Otherwise remove from the data.

Re: [R] Query - Merging and conditional replacement of values in a data frame

Your "assignments" (<-) are not legitimate R code that can be cut and pasted. Learn to use dput() to provide examples that we can use. You fail to say whether the time column of df2 is a proper subset of df1 or may contain times not in df1. I shall assume the latter. You also did not say whether

Re: [R] get() return nothing

On 11/02/2017 1:33 PM, Fix Ace via R-help wrote: Hello, there, I wrote a loop to check the dimension of all the .txt dataframes:> ls() [1] "actualpca.table" "b4galnt2""b4galnt2.txt""data" [5] "galnt4" "galnt4.txt" "galnt5" "galnt5.txt" [9] "galnt6"

[R] Query - Merging and conditional replacement of values in a data frame

Hello Everyone, I have two data frames df1 and df2 as shown below. They are of different length. However, they have one common column - time. df1 <- time v1 v2 v3 1 2 3 4 2 5 6 4 3 1 3 4 4 1 3 4 5 2 3 4 6 2 3 4 df2 <- time v11 v12 v13 3 112 3

[R] get() return nothing

Hello, there, I wrote a loop to check the dimension of all the .txt dataframes:> ls()  [1] "actualpca.table" "b4galnt2"    "b4galnt2.txt"    "data"  [5] "galnt4"  "galnt4.txt"  "galnt5"  "galnt5.txt"  [9] "galnt6"  "galnt6.txt"  "glyco"   "glyco.txt"

Re: [R] Plotting Landscape in R-Studio

> On 11 Feb 2017, at 20:13 , Jeff Newmiller wrote: > > While the question AS POSED is off base here (and in fact unlikely to have > any satisfactory answer due to the unavoidable squishiness of pasted graphics > in Word), I did wonder whether it wouldn't be easier

Re: [R] Plotting Landscape in R-Studio

While the question AS POSED is off base here (and in fact unlikely to have any satisfactory answer due to the unavoidable squishiness of pasted graphics in Word), the OP could investigate the ReporteRs package which can export graphics directly to word files in a fairly predictable manner,

Re: [R] Plotting Landscape in R-Studio

> On Feb 11, 2017, at 8:26 AM, Jeff Reichman wrote: > > R-Help > > > > How can I format a plot within R-Studio (Plot Windows) to conform to an 8.5 > x 11- landscape. Such that when I Export - Copy to Clip board I can past > plot into word. > This is really the

[R] Plotting Landscape in R-Studio

R-Help How can I format a plot within R-Studio (Plot Windows) to conform to an 8.5 x 11- landscape. Such that when I Export - Copy to Clip board I can past plot into word. Jeff [[alternative HTML version deleted]] __

Re: [R] RStudio: Place for Storing Options

For the record, then, Google listened to my incantation of "rstudio configuration file" and the second result was: https://support.rstudio.com/hc/en-us/articles/200534577-Resetting-RStudio-Desktop-s-State RStudio Desktop is also open source, so you can download the source code and look at the

Re: [R] How to disable verbose grob results in pdf when using knitr with gridExtra?

On Sat, 11 Feb 2017, vod vos wrote: Hi every one, I am using Knitr, Keep in mind that this list is about R first and foremost. There is a mailing list for Knitr, and also the maintainer of the knitr package recommends asking questions on stackoverflow.com. R and Latex to produce pdf

Re: [R] Independent samples bootstrapped T-test : question

This is really a statistical question and not about R, and purely statistical questions are typically off topic here. I note that there is a "boot" package that you may wish to consider, and searching on "bootstrapping" on rseek.org -- which you should always do before posting here -- produced

[R] How to disable verbose grob results in pdf when using knitr with gridExtra?

Hi every one, I am using Knitr, R and Latex to produce pdf file. When using gridExtra to set up a gtable layout to place multiple grobs on a page, grid.arrange(facetpoint1,pright1,pright2,pright3,pright4,pright5,pright6,pright7, ncol=2,

[R] Independent samples bootstrapped T-test : question

Dear R group, I have some question regarding bootstrapping in R. I wish to use independent samples bootstrapped T-test. I would like to know: 1 how I can calculate p and t values.2. for means and CI of each sample, should I report the bootstrapped mean and CI of each group? and not the ones