Re: [R] Problem with the str_replace function

Hi, stringr::str_replace() treats the 2nd argument ('pattern') as a regular expression and some characters have a special meaning when they are used in a regular expression. For example the dot plays the role of a wildcard (i.e. it means "any character"): > str_replace("aaXcc", "a.c",

Re: [R] Problem with the str_replace function

I prefer using regular expressions directly, so this may not satisfy you: > a <-"Women's footwear (excluding athletic)" > b <- gsub("(.*) \\(.*$","\\1",a) > b [1] "Women's footwear" There are, of course other ways to do this with regex's or even substring() Bert Gunter "The trouble with having

Re: [R] How to plot dates

Not sure what you mean by a horizontal line, Greg. I change one of my plots to add a path between corresponding values of the sequence variable but obviously those lines are mostly not horizontal. Look at geom_path and similar geoms like geom_line to connect endpoints grouped whatever way you

[R] Problem with the str_replace function

I have a problem with the str_replace() function in the stringr package. Please refer to my reprex below. I start with a vector of strings, called x. Some of the strings contain apostrophes and brackets. I make a simple replacement as with x1, and there is no problem. I make another simple

Re: [R] How to plot dates

Thank you very much. In addition to what your did, for event 1, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Then, for event 2, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Similarly for events 3, and 4. Is

Re: [R] How to plot dates

Dan, Thank you for this guidance. Unfortunately, I do not have the library lubridate, and I do not at this moment know where to go to get this library for an Apple MacBook. > library(lubridate) Error in library(lubridate) : there is no package called ‘lubridate’ Greg Coats Reston, Virginia USA

Re: [R] How to plot dates

It sounds to me like you want to take your data and extract one column for JUST the date and another column for just some measure of the time, such as the number of seconds since midnight or hours in a decimal format where 12:45 PM might be 12.75. You now can graph date along the X axis and time

Re: [R] How to plot dates

On 3/16/2021 3:32 PM, Gregory Coats via R-help wrote: Thank you. Let me redefine the situation. Each time an event starts, I record the date and time. Each day there are 4 new events. Time is the only variable. I would like to graphically show how the time for events 1, 2, 3, and 4 for the

Re: [R] How to plot dates

Thank you. Let me redefine the situation. Each time an event starts, I record the date and time. Each day there are 4 new events. Time is the only variable. I would like to graphically show how the time for events 1, 2, 3, and 4 for the current day compare to the times for events 1, 2, 3, and 4

Re: [R] How to plot dates

Hi Greg, This example may give you a start: myDat<-read.table(text= "2021-03-11 10:00:00 2021-03-11 14:17:00 2021-03-12 05:16:46 2021-03-12 09:17:02 2021-03-12 13:31:43 2021-03-12 22:00:32 2021-03-13 09:21:43", sep=",", stringsAsFactors=FALSE)

Re: [R-es] recuperación de datos mediante API

Estimado Patricio: ¿Podrías poner el código de httr que has intentado ejecutar, al igual que has hecho con Python? Te adjunto el código con el que estoy trabajando en un paquete de APIs, por si te puede servir de ejemplo:

Re: [R-es] test de MAN KENDALL aplicado a raster

Estimada Adriana Guzman Hay una referencia con un ejemplo en MannKendall function | R Documentation Espero no haber entendido mal y que sea de utilidad, la saludo. Javier Rubén Marcuzzi El mar, 16 mar 2021 a las

Re: [R-es] recuperación de datos mediante API

Estimado Patricio Fuenmayor Es solo un JSON, hay dos posibilidades, intenta con los parámetros en R, o lo descarga con cualquier navegador, lo guarda en el disco y luego lo lee desde R. Mire este artículo, Leer un JSON con R (RStudio) - Adictos al trabajo

Re: [R] R

Hello, Yes, you can ask R-Help questions on R code, that's what it is intended for. But please read the posting guide, it's link is at the bottom of this and of any R-Help mail. Good luck, enjoy R! Rui Barradas Às 18:19 de 16/03/21, Jonathan Lim escreveu: Hi I found your email on a

Re: [R] R

https://www.r-project.org/mail.html 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 Tue, Mar 16, 2021 at 12:51 PM Jonathan Lim wrote: > Hi > > I found your

Re: [R] How to plot dates

Hello, I don't really understand what is to be plotted, just the time of the event? But what event? Anyway, with the data read with Sarah's code, maybe library(ggplot2) ggplot(myDat, aes(x = datetime, y = 1)) + geom_linerange(aes(ymin = 0, ymax = 1), linetype = "dotted") + geom_point()

Re: [R-es] recuperación de datos mediante API

Hola Javier Solo es un jason, el problema es que no se que falta en la configuración de los parámetros para poder obtener los datos. Porque funciona en python, funciona con wget y con curl, pero con httr no lo logro Saludos El mar, 16 de mar. de 2021 a la(s) 14:59, Javier Marcuzzi (

Re: [R-es] recuperación de datos mediante API

Estimado Patricio Fuenmayor Si puede acceder con postman no hay problema, una pregunta, ¿son muchos o un solo json? Hay distintas formas, una no es rápida, pero segura, y es utilizar firefox desde R mediante CRAN - Package RSelenium (r-project.org)

[R] R

Hi I found your email on a website Can I ask some questions about R please Many thanks Jonathan [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see

Re: [R] How to plot dates

Dear Greg, Coordinate plots typically have a horizontal (x) and vertical (y) axis. The command ggplot(myDat, aes(x=datetime, y = datetime)) + geom_point() works, but I doubt that it produces what you want. You have only one variable in your data set -- datetime -- so it's not

Re: [R] How to plot dates

I need a plot that shows the date and time that each event started. This ggplot command was publicly given to me via this R Help Mailing LIst. But the result of issuing the ggplot command is an Error in FUN message. ggplot(myDat, aes(x=datetime, y = Y_Var)) + geom_point() Error in FUN(X[[i]], ...)

Re: [R] How to plot dates

So what do you want quantity on the y-axis to be? On March 16, 2021 11:45:32 AM PDT, Gregory Coats wrote: >I want to plot the date and time of the event, as reflected in data. >2021-03-11 10:00:00 >Greg Coats > >> On Mar 16, 2021, at 2:23 PM, Jeff Newmiller > wrote: >> >> You don't seem to have

Re: [R] How to plot dates

I want to plot the date and time of the event, as reflected in data. 2021-03-11 10:00:00 Greg Coats > On Mar 16, 2021, at 2:23 PM, Jeff Newmiller wrote: > > You don't seem to have a Y_Var in your data. What is it that you want to plot? > > On March 16, 2021 9:21:05 AM PDT, Gregory Coats via

Re: [R] How to plot dates

You don't seem to have a Y_Var in your data. What is it that you want to plot? On March 16, 2021 9:21:05 AM PDT, Gregory Coats via R-help wrote: >Sarah, Thank you. Yes, now as.POSIXct works. >But the ggplot command I was told to use yields an Error message, and >there is no output plot. >Please

Re: [R] How to plot dates

Dear Greg, There is no variable named Y_Var in your data set. I suspect that it's intended to be a generic specification in the recipe you were apparently given. In fact, there appears to be only one variable in myDat and that's datetime. What is it that you're trying to do? A more general

Re: [R] help

The length of the mean vector must match the number of rows and columns of the sigma matrix. Once you give 3 entries in the mean vector you will run into the problem that the sigma you are using is not positive (semi-)definite - a variance must be the product of a matrix and its transpose. -Bill

Re: [R] help

A 2 dim distribution must have a 2 x 2 covariance matrix. Your mean in b) specifies 2 dim, but your covariance matrix is 3x3. If you haven't just made a typo and you don't know what this means, then either consult statistics references or find someone to help you. Cheers, Bert Gunter "The

[R] unanticipated axis labels

library(lattice) library(latticeExtra) barchart(matrix(c(1:6, 5:6)), main="unanticipated left axis labels", ylab="unanticipated inside labels") + latticeExtra::layer(panel.axis("left", half=FALSE, labels=1:8)) barchart(matrix(c(1:6, 5:6)), main="ok 1", ylab="anticipated") +

[R] help

Code a is working. But code b is given error like given below. How can I write code b? > a<-rmvnorm(750, mean=c(0, 0), +sigma=matrix(c(1, .3, .3, 1), ncol=2)) > head(a) [,1][,2] [1,] -0.97622921 -0.87129405 [2,] 0.54763494 0.16080131 [3,] -1.16627647

[R-es] test de MAN KENDALL aplicado a raster

Hola con todos, Estoy tratando de aplicar el test de MAN Kendall a 28 raster que corresponden al NDVI promedio de los últimos 28 años. Alguien me puede indicar como lo podria realizar Saludos, Adriana [[alternative HTML version deleted]] ___

Re: [R] How to plot dates

Sarah, Thank you. Yes, now as.POSIXct works. But the ggplot command I was told to use yields an Error message, and there is no output plot. Please help me. Greg > library(ggplot2) > myDat <- read.table(text = + "datetime + 2021-03-11 10:00:00 + 2021-03-11 14:17:00 + 2021-03-12 05:16:46 +

Re: [R] Error: ignoring SIGPIPE signal

Hello there, This error happens if you did not finish reading from the pipe. E.g. I have this function in my local zshrc, to read tsv files with less in terminal width ... readdelim() { Rscript -e "options(width=$COLUMNS); read.delim('$1', check.names=FALSE, na='N/A')" | less }

[R] Error: ignoring SIGPIPE signal

Hi, ```R > sessionInfo() R version 4.0.3 (2020-10-10) Platform: x86_64-pc-linux-gnu (64-bit) Running under: Debian GNU/Linux bullseye/sid Matrix products: default BLAS: /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3 LAPACK:

Re: [R] How to plot dates

Hi, It doesn't have anything to do with having a Mac - you have POSIX. It's because something is wrong with your data import. Looking at the head() output you provided, it looks like your data file does NOT have a header, because there's no datetime column, and the column name is actually

Re: [R] How to plot dates

My computer is an Apple MacBook. I do not have POSIX. The command myDat$datetime <- as.POSIXct(myDat$datetime, tz = "", format = "%Y-%M-%d %H:%M:%OS") yields the error Error in `$<-.data.frame`(`*tmp*`, datetime, value = numeric(0)) : replacement has 0 rows, data has 13 Please advise, How to

[ESS] User-space installation of ESS 18.10.2 failing

Hi Steve: Julia-mode has been a headache ever since we added it. Can you just comment out that line in the Makefile? In theory, ESS should work without byte compiling. -- Rodney Sparapani, Associate Professor of Biostatistics Chair ISBA Section on Biostatistics and Pharmaceutical Statistics

Re: [R] Failure in predicting parameters

Just an update: I tried with desmos and the fitting looks good. Desmos calculated the parameters as: Fmax = 11839.8 Chalf = 27.1102 (with matches with my estimate of 27 cycles) k = 2.76798 Fb = -138.864 I forced R to accept the right parameters using a single named list and re-written the formula