CVS log for loncom/lonr

Up to [LON-CAPA] / loncom

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

- s-nail requires space instead of comma as separator between email addresses.

- Replace use of mailto (metamail package) with mail command.
  metamail was in Red Hat 7.3, but is absent from Fedora, CentOS, RHEL etc.

- Replace use of mailto (metamail package) with mail command.
  metamail was in Red Hat 7.3, but is absent from Fedora, CentOS, RHEL etc.

- Modify changes in rev 1.9 to explicitly separate the regexp which contributes
  output from indexed lines, and the regexp which contributes output from
  unserialized data.frame and matrix output (to support legacy code).
- Add some documentation.

- Whitespace changes only.
  - LON-CAPA coding style: indents have four spaces.

- Support evaluation of R expressions which begin with a digit (see rev 1.8)
- Modify regexp used to detect indexed line to support legacy use of
  &cas("R") for R output from a<-matrix and data.frame (i.e., without
  serialization) -- the preferred way is to use &cas_hashref("R").
- Remove unused scalars added in rev 1.1 when lonr was originally modelled
  after lonmaxima.

- Reverse part of change in rev. 1.4 which was causing evaluation of
  expressions such as: &cas("R", "2*(1-pt($t, df=$n-1));"); to fail.
- Improved detection of index in indexed line following regexp used in
  Statistics::R (cpan)
- Passing integer to R in sync() routine should result in exact echoing of
  the integer (i.e., avoid scientific notation in R's response format).

- Improved regexp for detection of end of output from a series of R commands,
  which prevents truncation of output, after Pr(>  e.g., output from anova().

Paul Rubin's interface to R.

Works now. However, it needs additional Perl libraries, which are currently
commented out. Also, an R-package needs to be installed.

* Some more blacklisted stuff
* Eliminate debugging code
* Templates for using R

Improved blacklist
Modified sync: R turns long integers into scientific notation

Support for R CAS
- needs testing
- better error handling
- correct blacklist
- correct list of allowed libraries

Routines to talk to R
- blacklist and list of allowed libraries need to be adapted

Equivalent of lonmaxima daemon to talk to "R"
- works but has absolutely no error handling yet