130 lines
4.6 KiB
R
130 lines
4.6 KiB
R
# .Rprofile
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#
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# This script is automatically executed on startup
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# ==============================================================================
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init <- function() {
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# Create a local copy of myScript.R if not done yet.
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if (! file.exists("myScript.R") && file.exists(".tmp.R")) {
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file.copy(".tmp.R", "myScript.R")
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cat("A new file \"myScript.R\" was created. You can use it for\n")
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cat("notes and code experiments.\n\n")
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}
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cat("\n\n")
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cat("Please open the file \".myProfile.R\" (click on the file-name in the\n")
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cat("\"files\" pane), edit it and save it.\n")
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cat("Then click the checkbox, and use the More -> Move... dialogue\n")
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cat("to move it into the \"myScripts\" folder.\n\n")
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file.edit("ABC-units.R")
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return(invisible(NULL))
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}
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if (! file.exists("./myScripts/.myProfile.R")) {
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cat("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n")
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cat(" =================")
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cat("\n\n")
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cat(" WELCOME !\n")
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cat("\n")
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cat(" Type 'init()' to begin\n\n")
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cat("\n")
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cat(" =================")
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cat("\n\n")
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} else { # local profile exists ... validate state:
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cat("\n\nLoading local functions ...")
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source(".utilities.R") # local profile appears sane, source utilities
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source("./myScripts/.myProfile.R")
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if (! exists("myEMail")) { # ... has eMail been defined?
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cat("ERROR !\n")
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cat("=======\n")
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cat("The file \"./myScripts/.myProfile.R\" exists, but\n")
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cat("the variable \"myEMail\" was not loaded.\n")
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cat("Please contact your instructor to continue.\n\n")
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}
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if (! exists("myStudentNumber")) { # ... has the Student Number been defined?
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cat("ERROR !\n")
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cat("=======\n")
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cat("The file \"./myScripts/.myProfile.R\" exists, but\n")
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cat("the variable \"myStudentNumber\" was not loaded.\n")
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cat("Please contact your instructor to continue.\n\n")
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}
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if (! grepl("^(100.{7})|(99.{7})$", as.character(myStudentNumber))) {
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cat("ERROR !\n") # is the Student Number valid?
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cat("=======\n")
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cat("The file \"./myScripts/.myProfile.R\" exists, but\n")
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cat("your Student Number could not be validated.\n")
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cat("Please examine the file \"./myScripts/.myProfile.R\"\n")
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cat(" and fix the problem or contact your instructor to continue.\n\n")
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}
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if (! exists("MYSPE")) { # if MYSPE has not yet been defined, define it now
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# ... and write it into the profile.
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prf <- readLines("./myScripts/.myProfile.R")
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iEmail <- grep("^\\s*myStudentNumber\\s*<-", prf)
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out <- prf[1:iEmail]
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out <- c(out, sprintf("MYSPE <- \"%s\" ",
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getMYSPE(myStudentNumber)))
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out <- c(out, prf[(iEmail+1):length(prf)])
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writeLines(out, "./myScripts/.myProfile.R")
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cat("\n")
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cat(sprintf("MYSPE (%s) was added to \"./myScripts/.myProfile.R\"\n\n",
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getMYSPE(myStudentNumber)))
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MYSPE <- getMYSPE(myStudentNumber) # ... define it for immediate use
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rm(prf, iEmail, out) # cleanup
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}
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cat("... done.\n\n")
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}
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if (default.stringsAsFactors()) {
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cat("WARNING.\n")
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cat("========\n")
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cat("Your default \"stringsAsFactors\" parameter is set to \"TRUE\".\n")
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cat("This will break some of the code.\n")
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cat("Please contact your instructor to troubleshoot and fix this issue.\n")
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cat("\n")
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}
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errText <- list()
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errText[["noProfileFile"]] <- '
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Your PROFILE FILE does not exist. This problem must be fixed to continue.
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The code expects the file "./myScripts/.myProfile.R" to exist and to
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contain your correct eMail address and student number. Detailed
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instructions were given when you first ran the init() command.
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Try running init() again and follow the instructions. Reload youR RStudio
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session and start over with this file.
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If this does not fix the problem, ask for help.
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'
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errText[["noStudentNumber"]] <- '
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Your STUDENT NUMBER has not been defined. This problem must be fixed to continue.
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The code expects the file "./myScripts/.myProfile.R" to exist and to
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contain your correct eMail address and student number. This file gets
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sourced when you start a new R-session, but since you see this error
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message there was a problem.
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Perhaps you need to restart your R-session. Try closing the RStudio
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project and reopening it from the File > Recent Projects menu.
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Perhaps there was a syntax error in your file. Then not all the
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instructions in the file are executed. Check the file: is your
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email perhpas not defined? Or did you type it without qwuoataion
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marks?
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Try fixing problems, and then restart R as described above.
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If none of this fixes the problem, ask for help.
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'
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# [END]
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