r-package

I'm following the instructions on this link to use coreNLP https://github.com/statsmaths/coreNLP However, I found this error > library(coreNLP) Error in get(method, envir = home) : lazy-load database '/Users/apple/Library/R/3.2/library/coreNLP/R/coreNLP.rdb is corrupt In addition: Warning messages: 1: In .registerS3method(fin[i, 1], fin[i, 2], fin[i, 3], fin[i, 4], : restarting interrupted promise evaluation 2: In get(method, envir = home) : restarting interrupted promise evaluation 3: In get(method, envir = home) : internal error -3 in R_decompress1 Error: package or namespace load failed for

My package (let's call it A) depends on another package B. I need to modify a function f in B that has a bug that is causing my package to fail. The problem is that f is an unexported function. If f was exported, I could use the technique described in this post to R-help: The few times I want to patch a function like this, I use: unlockBinding(name, env); assignInNamespace(name, value, ns=pkgName, envir=env); assign(name, value, envir=env); lockBinding(name, env); But because f is unexported, this doesn't work. Simple example to illustrate the problem: # rf is an exported function from the

I am using the R-package googleway to decode polylines using decode_pl and subsequently getting the elevation data at the corresponding lat/lon coordinates using google_elevation . I get the polylines from Strava , using the rStrava package. Sample polylines: pl1 <- "q{|aHknlv@n@Mt@IxAGb@B\\Eb@AZGRG^W`AyAPQF?NHDJFZBz@FVNPn@D`@C|@DjACv@@h@Dh@Ll@Zj@^\\`@fAx@j@r@d@n@\\ZJPNd@NbANzAFhANb@JNLHD?PKHMRGPSr@UPMXGDGJELMFCPAbBWROpAm@h@YZe@dAaC@Of@aAb@a@t@iALg@LWNQROf@IjAJnFbAv@Dr@Aj@BpBx@fFdCd@HlAHd@Pp@b@|@d@~@j@n@R~@n@\\NTCXBNEZCZKbB]rAKpDK~BO\\?NCd@?`DMz@SLO`@URCR@XLRRRVHd@NXNP\\RXf@JHXN\\Xn@ZD@Z?\

I am learning to build a package for R. Now to set it up I need to run some code when the package is being loaded via require(myPackage) . I read the documentation on help(".onLoad") that just made me really confused as there is no example. How do I actually use .onLoad ? Can someone please show me a simple example? For example I know export(myfun) in the NAMESPACE file will export myfun for use, what is the code that I need to run say rnorm(10) at package load? There is usually a "processing function" (traditionally called zzz.R ) with tasks to be performed when the package is loaded, such as

Im windows user. A few weeks ago I installed R and Rstudio and installed many packages. Today there was a spell that new packages are not installed. Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/src/contrib : cannot open URL ' http://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES ' I reinstalled R but this did not solve the problem. Warning in install.packages : InternetOpenUrl failed: 'Can not connect to server' This is something that pops up in R and RStudio only once in a while. RStudio changes quite a few settings, and the option "repos" is one of them

Is there an easy way to list everything in a package from within R? For example, if I type foreach::: and hit tab twice, I can see everything that's there. How else can I get those names of objects? Note, ls("package:foreach", all.names=TRUE) does not show things like .foreachGlobals ls("package:foreach", all.names=TRUE) only shows what's attached to the search path, which only includes the objects exported from the namespace. Use ls on the results of getNamespace instead: ls(getNamespace("foreach"), all.names=TRUE) A utility that I've been using which I find useful for this (and also gives