How we can get the list of installed packages by user in R along with its version? I know about the command installed.packages() which will give information about all packages (base or non-base). But how we can get those installed by user to have something like this: For all user installed packages (i.e. those package … Read more
Environment: Windows 7 OS RStudio Version 0.99.491 I have been programming in R for about 4 months via the Coursera Data Science curriculum, but I have NEVER been successful in using the unzip function. I’ve looked at the forums for hours for potential solutions, syntax problems, undefined arguments, etc., but to no avail. I eventually … Read more
An idea via dplyr, DATA
unfortunately i am a beginner in r. I d like to run a simple linear regression model in r with the comand lm, but every time i try the following error occurs: Error in xj[i] : invalid subscript type ‘closure’ The regression model ist just as follows: ret, tna, number_shr_cl are variables from a database … Read more
The problem in this specific case The right hand side of your formula is 1, which makes it a null model. coxph calls coxph.fit, which (perhaps lazily) doesn’t bother to return coefficients for null models. Later coxph calls extractAIC, which erroneously assumes that the model object contains an element named coefficients. The general case is.na … Read more
As Roland pointed out, one problem is, that col doesn’t seem to be numeric. Please check if means is a dataframe or matrix, e.g. str(means). If it is, your code should not result in the error: ‘non-numeric matrix extent’. You also have some other issues in your code. I created a simplified example and pointed … Read more
You can look at Hadley’s master file for ggplot2/R/fortify-spatial.r. Based on this outside link, my understanding is that lines 31–34 (in it’s current form) used to read something like So back then one way to attack the problem was to turn on the license As @rcs, @Edzer Pebesma, and this answer mention, rgeos should resolve the issue for more recent installations.
The length of the test_groups vector is 4 while the number of rows of subset is 5.Below I set to 5 the number of rows of subset and the adonis command works nicely. Here is the result.
This way works well when there are multiple network interfaces. It always returns the preferred outbound IP. The destination 8.8.8.8 is not needed to be reachable. Connect on a UDP socket has the following effect: it sets the destination for Send/Recv, discards all packets from other addresses, and – which is what we use – transfers the socket … Read more
It isn’t clear why you want to do this without sink, but you can wrap any commands in the invisible() function and it will suppress the output. For instance: Otherwise, you can always combine things into one line with a semicolon and parentheses: