NEWS

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rsm 2.10.5 (2024-06-09)

• Removes references to now-archived **Vdgraph** package, and replaces with **vdg**.
• Re-did old Sweave/PDF vignettes in RMarkdown/HTML. This makes the whole package easier to maintain
• Corrections to slice labels for contour and persp
• Made pkgdown site

rsm 2.10.4 (2023-09-20)

• Removed formatting in Value list in rsm.Rd, per CRAN request
• Allowed weights in recover_data.rsm

rsm 2.10.3 (2021-10-06)

• Changed URL links to JSS article to DOI:10.18637/jss.v032.i07

rsm 2.10.2 (2020-09-04)

• Updated to use new method registration support for emmeans package.
• Warning message added to canonical() when eigenvalues < threshold
• Change in default threshold to 10% of largest |eigenvalue|
• Vignette changes related to these
• Restored the vignette "rsm-plots" which for some reason had been suppressed

rsm 2.10 (2018-09-02)

• Changes to avoid loss of significance in decode.data()
• Informative error message in contour.lm() and relatives when non-existing variables are specified in 'form'
• Some S3 methods (e.g. contour.lm) also exported visibly to save confusion
• 'emmeans' support (recover_data.rsm, emm_basis.rsm) now dynamically registered

rsm 2.9 (2017-10-24)

• Changed license to ease interdependencies with other packages
• Moved development codebase to github repository rvlenth/rsm
• Added more robust model.data() function
• Added support for emmeans package

rsm 2.8 (2016-10-16)

• Added 'adjust' argument to 'rsm()'
• Added support for lsmeans package

rsm 2.7-4 (2015-10-07)

• Fixed error incurred when PQ() has only one argument

rsm 2.7-3 (2015-09-03)

• Added NAMESPACE imports of non-base packages referenced

rsm 2.7-2 (2015-05-13)

• Modified the "rs-illus" vignette slightly to make it less confusing

rsm 2.07 (2014-10-02)

• Including factors specified in 'at' in the slice labels

rsm 2.06 (2014-04-19)

• Fixed a bug in contour.lm wherein if xlabs is supplied, decoding was disabled
• Additional messages from contour.lm for misspecified axis labels.

rsm 2.05 (2014-04-14)

• Added back some details (e.g. R^2, F) earlier omitted from summary.

rsm 2.04 (2014-02-05)

• Correction in bbd: Wrong design was generated when k = 6

rsm 2.03 (2013-02-21)

• Corrected error in slice labels present since 2.00 (Thanks AGAIN go to Keith Ponting, Avaya)

rsm 2.02 (2013-02-10)

• Corrected deparse bug that occurs when model formula wraps a line. (Thanks go to Keith Ponting, Avaya)

rsm 2.01 (2012-12-15)

• Added .ccd.1.41 and .bbd.141 functions, so that given the random seed, one can reproduce a design that was generated in version 1.41 or earlier with the identical randomization. These functions are NOT exported.
• Renamed 'join' to 'djoin' to avoid clashing with 'join' function in the package conf.design
• coded.data and as.coded.data generate automatic codings if no formulas are provided.

rsm 2.00 (2012-12-07)

This is a major update of 'rsm'. It includes more pervasive and complete integration

of coded.data, and improves flexibility in generating designs and RSM analysis

• Old coded.data objects created before this version may need to be updated (via as.coded.data) in order to use some new functions such as join
• Allows more general rsm models, e.g. FO(x1,x2,x3,x4) + TWI(formula = ~x1:(x2+x3+x4)) + PQ(x1,x3)
• Can deal with singular second-order effects (e.g. stationary ridge). New threshold option in canonical analysis to actually force singularity -- which likely will identify a stationary point nearer the design center.
• All design-generating functions ALWAYS create coded.data objects, and they have columns for run.order and std.order. There are additional (under the hood) enhancements to coded.data to keep track of primary variables, blocks, etc.
• New cube(), star(), foldover(), dupe(), and join() functions for creating and combining designs. These should usually be used in preference to ccd() when doing iterative response-surface experimentation
• Added a oneblock argument to ccd() so we can create an un-blocked CCD
• A star block may be added to ANY design, including ones imported from other packages. Options alpha = "orthogonal" and alpha = "rotatable" calculate the the design moments, check suitability and set alpha to meet the criterion, or raise an error condition if it cannot be met.
• New 'block' argument in coded-data-generating functions. May be needed to identify blocking factor(s).
• New varfcn() function for examining the scaled variance function for a design
• contour.lm, persp.lm, image.lm now have "decode" argument (TRUE by default) that displays decoded values on the coordinate axes when codings are available
• contour.lm et al. now average over any factor levels rather than picking the first level of each. (May still specify particular levels in 'at')
• New vignette with a simulated example of a series of response-surface experiments
• Fixed some scoping bugs so that rsm can be called within a function. (This should make it possible to retire the spotRsm function in the SPOT package)
• parse.coding function replaced by .parse.coding (and not exported)
• row.names attribute for a design is updated to 1:nrow(design) every time it is randomized. 'ccd' does not create the same weird row names that it used to
• print.coded.data now has argument to decide whether to show coded values or actual values (actual is the default)
• function "codings<-" to change the codings
• function "[.coded.data" implemented for smarter handling of subsetted data; for example, if a coded column is excluded, so is its coding.
• New functions "names<-.coded.data", "truenames.coded.data", "truenames<-.coded.data" for smart handling of variable names, keeping coding consistent with names
• xs() function to obtain stationary point of an rsm object
• TWI() function now has optional 'formula' argument to aid in specifying reduced version of second-order models

rsm 1.41 (2012-07-28)

• Added a NAMESPACE so it will work in newer versions of R

rsm 1.40 (2010-07-29)

• Fixed scoping bugs in 'model.data' (affects 'contour.lm' etc.)
• Fixed scoping bugs in 'rsm'
• Fix to 'rsm' -- coding worked incorrectly when 'data' keyword was not given explicitly. Side effect: 'data' is no longer a separate argument, it's just part of '...'
• Added 'inscribed' optional argument to 'ccd' (Thanks to Ron Behlinger for suggesting this)
• 'contour.lm' checks to ensure that elements of 'at' and 'bounds', if provided, are named.
• New 'atlab' argument in 'contour.lm' and related functions. Now by default, the 'at' values are displayed for variables not on the coordinate axes; 'atlab' specifies where this information is shown, or suppresses it.

rsm 1.31 (2009-12-20)

• Fixed logic bug in contour.lm - didn't handle xlabs correctly

rsm 1.30 (2009-12-18)

• Enhanced contour.lm with hooks and improved axis labeling Also changed default to image=FALSE -- seems more "pure"
• Added persp.lm for perspective plots akin to contour.lm
• Added image.lm for image-only plots akin to contour.lm
• Added 'codings' methods for coded.data and rsm objects
• Added 'canonical' method for rsm for more convenient access
• Updated references to 3rd ed. of Myers, Montgomery, Anderson-Cook (also corrected misspelling of Myers -- my apologies to Ray.)
• Additional vignette "rsm-plots" describing contour, image, persp in more detail

rsm 1.21 (2009-10-30)

• Bug fix in contour.lm (axis labeling was reversed whern image=FALSE) Thanks to Eduard Sturm for reporting this

rsm 1.20 (2009-10-20)

• Replaced citation to point to paper published in JSS
• Replaced vignette by JSS article

rsm 1.13 (2009-10-12)

• Fixed one misused macro in documentation

rsm 1.12 (2009-05-06)

• Modified CITATION file to conform to standards

rsm 1.11 (2009-03-06)

• Changed last variable name to 'logSD' in 'heli' and clarified documentation for that dataset
• Fixed bug in contour.lm relating to original use of model formula, e.g. it now works with for model fitted by 'lm(swiss)' Changes from version 1.10 (30 December, 2008)
• Added functions ccd() and bbd() for generating RS designs
• Added function ccd.pick() to help in choosing good CCDs
• Added checks in rsm() for aliased parameters
• Added NEWS and CITATION files.
• Tweaks/corrections/additions to documentation and vignettes. Changes from version 1.01 (5 December 2008)
• Added canonical.path function
• Modified formula handling in coded.data and relatives so that any legal expression will work (as long as it's linear!)
• Overhauled contour.lm, with different argument list. Now it is much easier to use, and can produce multiple plots with one call.
• Provided a true vignette. Other improvements to documentation.