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Im taking an R programming class that is using the package "matplot" for a demo. I cant find "matplot" in CRAN so i'm assuming it has been replaced/deleted/changed. Is there another package that replaced it?
There is a matplot function within the graphics library. Here's an example from the documentation:
require(grDevices)
matplot((-4:5)^2, main = "Quadratic")
Also, matplot is a plotting library for PHP. Perhaps your instructor could help clarify what is expected.
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In R studio, I entered the following code:
summary(chickwts)
attach (chickwts)
barplot(chickwts$weight,main="Individual Weights,ylab="Weight")
Am using R 4.2.2 for Windows in R Studio environment. Code was from a course in TGC called "Learning Statistics, Concepts and Applications in R". Error message says comma the problem but this is the code that the course give. Am not sure how to proceed to get the barplot.
Any help appreciated.
I used the code the course gave, and it didn't work.
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install.packages(qwraps2)
Error in install.packages : object 'qwraps2' not found
This package wont install, I get the above error. Can anyone help?
Try install.packages("qwraps2") instead.
it will not work without the quotes around package name
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Can anyone point me in the right direction for getting around this error? I'm new to creating packages and am currently following Hadley Wickham's guide.
http://r-pkgs.had.co.nz/description.html
To copy the comments of #zx8754, use_package is now part of the usethis package. And per the comment from #MichaelChirico, Hadley's book is updated on github, but has not yet been re-published.
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Closed 4 years ago.
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I am beginner studying Bioconductor.
I am try to follow lecture of Bioconductor.
source("https://bioconductor.org/biocLite.R")
biocLite("Biostrings")
library(Biostrings)
data(phix174Phage)
Warning message:
In data(phix174Phage) not foundError: object 'phix174Phage' not found.
What did I wrong?
R is case-sensitive. Try:
data(phiX174Phage)
with an upper-case X, as specified in the introductory tutorial.
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Closed 7 years ago.
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I am returning to some old code where I had used the following syntax:
y[df$myvar %between% c(1,100)]
but get the error
could not find function "%between%"
This code used to work, and I have updated R in the mean time. any thoughts?
As Pascal pointed out, you should load the package data.table first:
library(data.table)
Then you'll be able to use it.