r Questions
2
In R, I have some rather unusually formatted strings in a data.frame column that I would like to split by commas (i.e., each element of the column is a string of individual values separated by comm...
2
Solved
I like to interpolate a time series, so that the timestamp is exact 0.1 Hz. So the first step maybe would be something like
library(tidyverse)
library(zoo)
options(digits.secs = 3, pillar.sigfig ...
Osteoma asked 18/9 at 14:26
4
Let's consider markers with their coefficient of variation (cv) and three reference cv (rcv):
Initial data:
marker cv rcv1 rcv2 rcv3
<chr> <dbl> <dbl> <dbl> <dbl>
1 ...
2
Junior R developer here. I'm not really completely clear on the meaning of the LinkingTo field in an R package's dependencies.
What I would like to do is remove the package BH after the installat...
Nipha asked 23/1, 2019 at 20:43
5
Solved
I have this data:
simulated_states = c("A", "E", "B", "B", "A", "C", "D", "A", "B", "D", "A&...
Nedry asked 19/9 at 2:8
3
Solved
I am trying to write a code that will allow me to automate the calculation of a population estimate on summarized capture data based on two-pass depletion methods used in fisheries.
The equation to...
1
I have data from a study using a 2x2x3 repeated measures design. Participants provided a numeric response ('tcons') at two time-points (test: 'pre', 'post'). They were further grouped with respect ...
8
Solved
I would like to populate a matrix by row based on a function which gives the seq() of a number seq(1) 1 seq(2) 1 2 and so on
matrixinp = matrix(data=NA, nrow=6, ncol=6)
> print(matrixinp)
[...
2
Solved
I'd like to sample rows from a data frame by group. But here's the catch, I'd like to sample a different number of records based on data from another table. Here is my reproducible data:
df <- ...
3
Solved
Okay, so I know I could do something like this,
mtcars %>%
group_by(cyl) %>%
sample_n(2)
which will give me,
Source: local data frame [6 x 11]
Groups: cyl [3]
mpg cyl disp hp drat w...
2
Solved
There is a strange behavior of lobstr::obj_addr caused by its vectorization over lists, when the list itself doesn't change the address.
I just started Advanced R by Wickham (2ed) and reached the 2...
Brambling asked 16/9 at 16:19
1
Solved
Since version 4.4.0, R supports tail recursion through the Tailcall function. I automatically assumed that it means an improvement for codes that use tail recursion.
However, consider the following...
Forenamed asked 12/9 at 18:17
2
Solved
Using ggplot2 with geofacet, I want to outline some group of facets with rectangles. I guess I could draw it after the image is saved on disc as .png or .jpg with the magick package, but I would pr...
1
Solved
I have a very similar question to the one asked in Half violin plot with different factors in R which was perfectly answered by @AllanCameron. In addition to the data of the mentioned question I al...
Belga asked 15/9 at 18:15
3
Solved
I have this graph network in R:
library(igraph)
n_rows <- 10
n_cols <- 5
g <- make_lattice(dimvector = c(n_cols, n_rows))
layout <- layout_on_grid(g, width = n_cols)
n_nodes <- vco...
2
Solved
Here is a code that creates ellipses of 1400 metres length in the main axis and 1000 metres length in the side axis. Each ellipse is assigned with an ID.
library(sf)
library(ggplot2)
library(dplyr)...
Archaize asked 12/9 at 15:45
3
Solved
A minimal Rmarkdown document has a YAML header, markdown syntax and R code chunks.
To edit such a multi-language file, I am using the Emacs editor, and the buffer in which the Rmd document is opene...
Irruption asked 30/11, 2016 at 17:8
2
Solved
I have a ID variable that comes from 35 different hospitals, so has varying different arrangements of the variable, and sometimes it has the same root ID number with a secondary line number - e.g. ...
Enigmatic asked 13/9 at 3:20
2
Solved
4
I've got some coefficients for a logit model set by a non-r user. I'd like to import those coefficients into r and generate some goodness of fit estimates on the same dataset (ROC and confusion mat...
1
Solved
I have a random graph in R in which one random node is colored red (square) - and all other nodes are colored lighter shades of red relative to their distance from the original node (i.e. based on ...
Lennox asked 11/9 at 2:1
3
Solved
I wish to evaluate a vector of strings containing arithmetic expressions -- "1+2", "5*6", etc.
I know that I can parse a single string into an expression and then evaluate it as in eval(parse(tex...
Bissonnette asked 26/7, 2014 at 20:25
3
I'm familiar with G*Power as a tool for power analyses, but have yet to find a resource on the internet describing how to compute a power analysis for for logistic regression in R. The pwr package ...
Pru asked 1/12, 2014 at 18:20
2
Solved
I've been searching around this morning to try to figure out if the failure below is expected but haven't found anything. Could anyone help point me to a related discussion? Otherwise, I might subm...
Ogrady asked 21/10, 2020 at 13:17
3
Solved
How do I take a cell in Excel, which has text that is hyperlinked, and extract the hyperlink part?
Acton asked 10/6, 2014 at 19:58
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