CHANGES IN Renext package VERSION 3.1-3 CHANGES o No longer check on the class of objects, `inherits`. o Fixes in doc (URLs, ...). CHANGES IN Renext package VERSION 3.1-2 CHANGES o In the 'Renext Guide' document, the version of R used is now mentioned at the beginning. The document has consequently be recompiled with a new version. o In the function `Ren2gev` the computation of the gradient was not correct in the case where the shape is nearly zero (it returned NaN). The suitable formula based on a Taylor expansion is now implemented. o Several re-arrangements of the code (indentation, ...) CHANGES IN Renext package VERSION 3.1-1 BUG FIX o The function 'rRendata' dit not work as expected when 'threshold' was set to a non-zero value. CHANGES IN Renext package VERSION 3.1-0 CHANGES o Simple change of version for CRAN submission. CHANGES IN Renext package VERSION 3.0-5 BUG FIX o In 'Renouv', an error occured with 'x = NULL' when the mean of 'MAX.data' or that of 'OTS.data' was negative, due to a missuse of 'log' when scaling of the data. Thanks to Yasser Hamdi. CHANGES o Slight changes in 'Renext Guide' and documentation. CHANGES IN Renext package VERSION 3.0-4 BUG FIX o In 'fweibull', the estimated covariance was wrong with the (non-default) 'info.observed = TRUE'. CHANGES o 'Renouv' now uses by default the observed information matrix rather than the expected one in the case where there is no historical infoemation and a special distribution is used. Changes were consequently needed in 'fML', and the estimation functions for some special distributions: 'fweibull', 'flomax', 'fmaxlo', 'fGPD', where the default information matrix is now the observed one. o The 'fGPD1' 'flomax1' and 'fmaxlo1' (all for a fixed 'shape', non exported) where changed to allow 'info.observed = TRUE'. Good bounds on the unknown scale parameter are now used, avoiding convergence problems. Moreover the data is scaled by default thus improving numerical precision. o The 'fweibull' function now scales the data. o Improved code to better conform to CRAN coding standards. o Added a missing 'set.seed' in examples for reproductibility. CHANGES IN Renext package VERSION 3.0-3 BUG FIX o In 'flomax' and 'fmaxlo' the test on the 'try' result was wrong resulting in a missing covariance in the (non-default) case 'info.observed = TRUE'. In both functions the dimnames of 'cov' where lost with 'scaleData = TRUE'. CHANGES IN Renext package VERSION 3.0-2 BUG FIX o The 'rgpd' function did not work correctly for a value of the shape parameter near '.Machine$double.eps'. The functions '[qpdhH]GPD' have been modified in accordance. A similar problem is found in the 'evd::' functions for gpd and even for gev. o In 'fGEV.MAX' an error due to the scaling occurred if the data was not positive. o In 'fGPD', the covariance matrix was not returned for a shape < -0.5 even though 'cov' was TRUE. Similarily, in 'fmaxlo' the covariance was not returned in the shape > 2 case. o The 'evdbayes' package was misscited as 'bayesevd' in the file 'Renext-package.Rd'. NEW FEATURES o In 'fGEV.MAX' a new 'cov' logical argument is added to make optional the computation of the covariance matrix and of the vector of sd. When the estimated shape is < -0.5 the covariance and the vector of sd are filled with NA, because the regularity conditions are not fulfilled. o In 'fGEV.MAX', the expected information matrix can now be used instead of the (default) observed information, provided that the data are block maxima (with only one observation per block). CHANGES o In 'fGEV.MAX' the value of technical parameter 'delta' was changed and set to a very small value. o Slight changes in the documentation and code presentation. CHANGES IN Renext package VERSION 3.0-1 BUG FIX o The 'readXML' function gave an error when somme dates of the OTdata part were NA (POSIXct). Fixed. o The NAMESPACE now duely imports from base packages as required by CRAN checks. CHANGES IN Renext package VERSION 3.0-0 CHANGES o Only minor changes in doc/guide. The major number stands for the completion 2.x efforts. o Remind that 2.1-10 on CRAN was a patched version solving problems revealed by CRAN checks CHANGES IN Renext package VERSION 2.4-0 CHANGES o Several functions involving POSIXct objects have been changed in the aim of removing concatenation of POSIXct with the 'c' method, which drops the timezone and leads to strange timezone in the remote past. o In the 'OT2MAX' function, the code for the preparation of the output was unclear for the case when 'dataFrames' is FALSE. o Changed the doc of the 'parDeriv' function. o in 'fGEV.MAX' a suitable constant is added to the final logLik in order make this value comparable to the one computed by the classical method for maxima or r largest (evd, ismev). BUG FIX o In 'plot.renouv', the 'pct.conf' argument was not duely passed to 'lines.Renouv'. Fixed. o In 'OT2MAX' function the determination of the end was wrong because it was loosing a full year at the end of data. CHANGES IN Renext package VERSION 2.3-0 CHANGES o The content of the 'data' directory was renewed to save the examples as '.rda' files instead of the previous '.R' dump files. The 'POSIXct' objects in data are now with "GMT" time zone. The .Rd files were also modified to change some POSIXct extractions and to remove the 'AsIs' class indication for chr variables ('comment'). o 'rRenouv' and its help is removed. o 'gpd2lomax', 'gpd2maxlo', 'lomax2gpd', 'maxlo2gpd' are no longer exported and their .Rd files have been removed. o Code and doc of 'LRExp.test' function changed to add the "maxlo" alternative. Code for 'anova.Renouv' now calls 'LRExp.test' when needed, to avoid code duplication. o 'readXML' and its documentation: added the possibility of specifying the time zone. Doc: browse 'index.xml' in the examples. o Typos and misspellings in the doc. o Help page for 'NBLevy' (outdated reference and so on). BUG FIX o In 'Renouv' the correction of initial values for the "GPD" distribution with initial shape < 0 was not done. o In 'lines.Renouv', the DEBUG parameter was TRUE generating verbose noise. CHANGES IN Renext package VERSION 2.2-3 CHANGES o Added derivation w.r.t. parameters of the Lomax and Maxlo distributions in 'parDeriv', and changed the 'examples' section. o In the 'predict' method for 'Renouv' objects, the probability column will no longer be found by default. The previous computation can be retrieved by using the non-default formal value prob = TRUE. o Some typos/errors in the documentation have been fixed. o Replaced 'require' by 'requireNamepace' for suggested package "XML". BUG FIX o For the 'Lomax' and 'Maxlo' distributions 'plomax' and 'pmaxlo', the parameter 'lower.tail' was misleading, since they did not work as usual. Yet the default was for the distribution function as usual so this problem had no impact on ML estimation. CHANGES IN Renext package VERSION 2.2-2 CHANGES o 'predict.Renouv' now has its argument 'cov.rate' working. Turn to TRUE for default? o added some 'eval' needed in the legend construction 'lines.Renouv'. o Corrected inefficient data control in 'makeOTSdata'. CHANGES IN Renext package VERSION 2.2-1 BUG FIX o Problems with symbol numbers and names in 'lines.Renouv'. CHANGES IN Renext package VERSION 2.2-0 BUG FIX o With the "GPD" distribution 'Renouv' did not return the logLik as expected. CHANGES o The package now imports from the 'splines' package since 'splineDesign' is required to approximate the quantile functions required in some tests. o Technical data is added in a 'sysdata.rda' file of the R directory. o In 'Renouv', the returned data list named 'history.MAX' and 'history.OTS' have two new slots called 'dataNames' and 'blockNames'. The are extracted from the object's data frames when 'x' has class "Rendata" or are extracted from the names used in the list provided by user in the 'MAX.data' or 'OTS.data' arguments when 'x' is numeric. These indications are used in the legend built for plots built with the 'plot' or 'lines' methods of the "Renouv" class. o The the formal arguments of 'plot.Renouv' and 'lines.Renouv' have been modified to allow the user to better manage the block data (MAX or OTS). Some blocks can be shown or not thanks to extended possibilities of the 'show' argument. The new 'byBlockStyle' argument can also be used to decide if the blocks of a same type (MAX, OTS) should be plot with the same style and to adapt the legend in correspondence. o Many changes have been done in the 'RenextGuide' document shipped as a pdf file with the package. NEW FEATURES o Several functions have been added to perform tests of exponentiality or Gumbelity: 'CV2.test, 'Jackson.test', 'LRExp.test', 'LRGumbel.test' and other related functions, e.g. the 'pGreenwood1' function. The related 'anova' method was also implemented. CHANGES IN Renext package VERSION 2.1-9 BUG FIX o The new 'OT2MAX' did not work without missing information. CHANGES IN Renext package VERSION 2.1-8 BUG FIX o The 'SandT' function did not work correctly for objects with class "Renouv". NEW FEATURES o The 'OT2MAX' now returns some summary information about gaps and can plot the mean gap rate. CHANGES IN Renext package VERSION 2.1-7 CHANGES o 'Hpoints' is now duely exported. o Corrections in 'fmaxlo' and 'fGPD' docs concerning the constraint. BUG FIX o The 'flomax' and 'fmaxlo' functions could not work with cov = FALSE, due to a bad variable name. Fixed. CHANGES IN Renext package VERSION 2.1-6 NEW FEATURES o It is now possible to use the 'RLplot' method on an object of class "Rendata". The plotting positions come from 'SandT' and no fit is required. CHANGES o 'SandT' now optionally uses the old plotting positions with naive = TRUE. o 'lines' 'PPplot' and 'QQplot' methods now use the plotting positions as described in 'Renext Computing Details'. o The maximal number of historical blocks to be coloured individually in 'plot.Renouv' or 'RLplot' can be reduced. BUG FIX o In the function 'SandT', the removal of ex-aequos among the tresholds was wrong (and finally useless). Fixed. o When fitting the "GPD" special distribution with historical data, the check that all HD falls in the support was missing. CHANGES IN Renext package VERSION 2.1-5 CHANGES o 'fmaxlo' now uses a lower bound on the shape parameter, since the unconstrained ML estimate is always at the boundary. o In 'flomax' a better lower bound for the ML estimate of the scale parameter is now used. o 'fmaxlo' and 'flomax' now use an explicit formula for the inverse of the expected information matrix. Both functions now have a 'cov' formal. When FALSE, the computations boil down to a maximisation of the profile log-likelihood, and the covariance is not computed. This aims to have a fast evaluation e.g. in order to sample a likelihood ratio statistic. o 'fGPD' has been refactored, and now merely turn to the estimation of an exponential distribution when the CV is close to 1.0. BUG FIX o In the function 'SandT', the value of the survival was incorrect because it used the rate of events for the first inter-threshold range only, and not the whole rate. CHANGES IN Renext package VERSION 2.1-4 CHANGES o Added a new distribution named "GPD" that can be used in 'Renouv'. This distribution has functions returning NaN when the parameter vector falls outside of its validity domain (scale > 0), and therefore unconstrained optim can be used for ML estimation. o In 'fGEV.MAX', a scaling is added and a 'try' to overcome the problem of non-invertible hessian. A new threshold choice is proposed based on the spacings. BUG FIX o In the function 'fmaxlo', the lower bound chosen for ML estimation was too small for a numerical evaluation of logLik and its derivative, leading to a (wrong) negative derivative, and to a warning. CHANGES IN Renext package VERSION 2.1-3 CHANGES o The 'envir' formal of the 'RLlegend.*' functions is removed. for simplicity. A new function 'RLlegend.print', non exported, is added for debugging legend problems. o A 'label' formal argument is added to 'Renouv' and is by default set to "". This character string appears in the legend as a prefix to the graphical objects description ("quant", "conf", ...) and where a mysterious "res" was shown before. When the call to the 'plot' method within 'Renouv' leads to an error, the result is returned with a simple warning. BUG FIX o In the function 'makeOTSdata', some problem could occur when MAX.r == 0. This created strange problems in 'SandT'. CHANGES IN Renext package VERSION 2.1-2 CHANGES o New functions dedicated to block maxima in relation with POT/Marked process. These are 'gGEV.MAX' and utility functions 'Ren2*', '*2Ren', 'parini.MAX' and 'parini.OTS', ... o New function 'rRendata' to simulate "Rendata" objects. This is very useful for testing estimation of plotting functions. o New method 'spacings' computing the spacings. o New function 'fGPD' for ML estimation of a GPD from a sample. Works by calling either 'flomax' or 'fmaxlo'. o New function 'parDeriv' computing the derivatives w.r.t parameters of the density and survival of some distributions, at the time, only "weibull" and "gpd". o In 'Renouv' it is now possible to give 'x = NULL' in which case only historical data are used. At the time, this is done by calling the 'Renouv4' function. The 'parini.MAX' and 'parini.OTS' functions perform the key step of parameter initialisation. o New function 'OT2MAX' to create block maxima from marked process data. o New function 'SandT' computing the survival and the return periods using an adaptation of Hirsch and Stedinger's method. This is useful for plotting positions. o New methods 'QQplot' and 'PPlot' for the class "Renouv". Some work is still needed to deal with historical data. CHANGES IN Renext package VERSION 2.1-1 BUG FIX o 'print.summary.Renouv' produced an error when some OTS blocks had length 1. Fixed. CHANGES o Following an advice given by B. Ripley, an environment object is created in the package in order to share variables between the package functions without turning these into global variables. Thus the legend management functions 'RLlegend.ini', 'RLlegend.show' and the 'plot' and 'lines' method for class "Renouv" no longer require defining an environment and passing it as an argument. See the example of 'RLlegend'. CHANGES IN Renext package VERSION 2.1-0 CHANGES o Global variable 'RLlegend' renamed to '.RLlegend' and added a "Caution" section in the help page of 'plot' and 'lines' methods for the S3 class "Renouv". CHANGES IN Renext package VERSION 2.0-15 CHANGES o Changed the 'Depends' Imports' and 'Suggests' lists of packages. o 'Renouv' replaced by 'Renouv3' (renamed). o Many slight changes in the manual, some in the 'Renext Guide'. BUG FIX o 'df' misleadingly returned the number of obs in 'RenouvNoEst'. CHANGES IN Renext package VERSION 2.0-14 CHANGES o Added an 'nobs' field in output of 'Renouv3' (for AIC or BIC). o The 'logLik' method for class "Renouv" now uses 'df' and 'nobs' and no longer uses 'p.y' and 'nb.OT', but duly computed values which can be used with historical data. The documentation of the 'logLik' method was changed consequently. BUG FIX o The the number of obs was 'df' in the output of 'Renouv3'. CHANGES IN Renext package VERSION 2.0-13 CHANGES o The functions 'roundPred' and 'plot.Renouv' can now work with prediction tables containing NA. This can occur if the standard deviations of estimates are not available, e.g. if the shape parameter of the GPD is < -0.5. o In 'Renouv3.R', some precautions have been added using 'try' in order to manage situations when the hessian is non-invertible or has negative eigenvalues. For compatibility reasons, the covariance and standard deviations objects are then filled with NA rather than set to NULL. BUG FIX o When using the plot method with an object with S3 class "RenData" an error could happen with MAXdata containing NA dates. Fixed. CHANGES IN Renext package VERSION 2.0-12 CHANGES o In the package DESCRIPTION, 'LazyData' was turned to 'yes'. Thus, the datasets 'Garonne', 'Brest', ... are now available without requiring "data" as in "data(Garonne)". o The 'fML' and 'Renouv3' functions now return the maximised log-likelihood as a 'logLik' list element. Bounds for the parameters are also attached to the distributions, but not used yet in the optimisation. The problem is that NaN are not supported in constrained optimisation methods but such values are likely to occur when maximising a gpd log-lik. o The probability functions for the "Lomax", "Maxlo" and "SLTW" distributions no longer produce an error when the parameters do not fill the sign constraints. Instead, a (vector of) NaN is returned. This allows the use of an unconstrained optimisation method such as "BFGS". o The functions 'flomax' and 'fmaxlo' dedicated to the MLE for the "Lomax" and the "Maxlo" distributions have been improved. Bounds have been derived to localise the ML estimate, and a scaling is applied to the data used during the optimisation. These two tasks remain to be done for the case where the shape parameter is known 'flomax1' and 'fmaxlo1'. o Many small changes were made in the document 'RenextGuide'. These change are now described in a special 'ChangeLog' file in the 'doc' directory. o Slight corrections in .Rd files (e.g., 'RLlegend'). NEW FEATURES o The "Renouv" S3 class now has methods 'logLik' 'nobs' and hence also 'AIC' and 'BIC'. However, these methods do not yet provide results when historical data are provided. Some work is still needed to design the constants and to define 'nobs' for fits which use historical data. BUGS FIX o In 'Renouv3', the arguments 'start.par.y' and 'fixed.par.y' are now intended to be named vectors rather than lists so passing then as lists produced an error. Fixed. o The "maxlo" distribution could produce an error when used with historical data, because the first ML estimate Of the scale 'beta' (est. without historical data) could be smaller than one historical data. Fixed. o In 'RenouvNoEst', an error occurred when "distname.y" was not a special distribution, because the parameter names were not duly retrieved from the 'estimate' arg. Fixed. CHANGES IN Renext package VERSION 2.0-11 CHANGES o Unused hidden file (.BAKRbuildignore) removed. o Coerce a 'skip' argument to integer (read as character from XML file). o Changed the Maintainer address, now the personal address of Lise Bardet. CHANGES IN Renext package VERSION 2.0-3 NOTE o The package still exports two undocumented functions named 'Renouv2' and 'Renouv3'. These functions have the same args as 'Renouv' with the same meaning, but are refactored versions with some new features. The function"Renouv3" is the one intended to replace "Renouv" in the next CRAN version. NEW FEATURES o Method 'vcov' for the S3 class "Renouv" to extract the covariance matrix of estimates. CHANGES o The 'RLlegend' function no has an explicit argument 'bty' to overload the default value of 'legend'. Legends produced with 'RLlegend' no longer show a box by default. o Changes in the "RenextGuide" document. They concern the likelihood for OTS data (subsection 3.4.2 "Likelihood", therein a remark about concentrating the likelihood with historical data and coefficient of variations (subsections B.2.2 "Some indicators" and B.3.2. "Generalised Pareto Distribution/ Estimation and inference"). This document does not tell much about the new features for versions > 2.0-0. BUGS FIX o In 'plot.Renouv', the argument 'pct.conf' was not passed to 'lines.Renouv' as it must be. CHANGES IN Renext package VERSION 2.0-2 NEW FEATURES o New functions 'RLlegend.ini' and 'RLlegend.show' to fill legends for return levels plot built with two or more 'plot' and 'lines' steps. The legend is built in a semi-automatic fashion by collecting information given in the 'par' argument: line types, colors, ... o New temporary function 'Renouv3'. This follows the re-factored 'Renouv2', but the likelihood is now concentrated when historical data are given. More precisely, the event rate parameter 'lambda' is concentrated out of the likelihood using an appealing formula 'lambda.hat' = 'number of events'/'discounted duration' where the duration of a historical block is discounted by a survival value. CHANGES o Reference manual: small corrections. The line 'library(Renext)' is removed from the examples. o The 'plot.Renouv' argument list was changed to be in accordance with that of 'lines .Renouv'. BUGS FIX o In the 'Renouv2' function. CHANGES IN Renext package VERSION 2.0-1 NEW FEATURES o 'RenouvNoEst' function to create a new object of class "Renouv" without estimation. o 'lines.Renouv' function/method to add graphical elements from a "Renouv" object to an existing return level plot a used in Renext. o 'RLpar' function to change the value of the graphical parameters. o New ML estimation functions 'fgamma', 'flomax' and 'fmaxlo' (experimental and undocumented). o New function 'fgpd1' for the estimation of a GPD with given shape 'xi' (and location 'mu') but with unknown scale 'sigma'. CHANGES o Re-factoring of the 'Renouv' function in order to reach a better code re-use. The result is in a 'Renouv2' function still on development. BUG (NOT FIXED YET) o In the 'RenextGuide' document the log-likelihood given for OTS historical blocks contains an error. o In the 'plot.Renouv' function/method, the pct.conf may not work as expected/wanted in this version. This is because more flexibility is now needed in the selection of the graphical elements that must be displayed in order to have a good interface for the 'lines.Renouv' function/method. o In the 'plot.Renouv' function/method, the adding a text create an error due to the use of an unbound variable 'ry'. CHANGES IN Renext package VERSION 2.0-0 CHANGES o This 'Changelog' cleaned. CHANGES IN Renext package VERSION 1.5-1 CHANGES o Typos in the 'RenextGuide' document. CHANGES IN Renext package VERSION 1.5-0 CHANGES o The 'fit.Renouv' function is renamed 'Renouv' as would expect most R users. o The shifted Pareto 'spareto' distribution and its functions are renamed as "Lomax" distribution and 'xlomax' with x in "d", "p", "r", "h", "H". o Many slight changes in the vignette most of them striving to improve the English. o The vignette code (.Rnw) and subsequent material needed is no longer shipped with the package for the sake of its size and the resources needed in the build step. o The warning message produced when hessian is not definite negative is strengthened. BUG FIXES o In the 'plot.Renouv' function, when historical data are shown on the plot it can be the case that their number exceeds the predicted number. This was a problem for the determination of the plotting position. Now the predicted number is modified in order to be at least the observed number. CHANGES IN Renext package VERSION 1.4-1 CHANGES o The 'fRenouv' function is REMOVED, and 'fit.Renouv' should now be used. o Many minor corrections (essentially spelling) were made in the documentation. o The documentation of the 'fit.Renouv' function now lists the 'special distributions' and their parameters. o The 'print.summary.Renouv' function now informs the user about the inference method used (delta method or exact chi square). It also displays relevant information about historical blocks used in the fit, if any. o The 'ret.lev' table returned by 'fit.Renouv' no longer has rownames indicating the return period. The reason is that this table (a data.frame object) can not by default have ties in its rownames, and formating general (not 'pretty') return periods is difficult. o Changes in the vignette. NOT FULLY CHECKED YET (spelling!) Some details have been added about the "log-exponential" and the "square-exponential" distributions. BUG FIXES o The 'predict.Renouv' gave an error when the object 'x' had a transformation 'trans.y'. Fixed. o The 'fit.Renouv' function returned in some cases an error message in place of a table in its 'ret.lev' element. This was due to 'rownames'. Fixed. CHANGES IN Renext package VERSION 1.4-0 CHANGES o The 'plot.Renouv' function was changed. The 'problim' and 'Tlim' arg now work as expected. The rule to set the x axis is quite complex to describe, but yet rather natural to use. o The vignette was modified mainly in the chapter devoted to the 'fit.Renouv'. The two types of historical data 'MAX' and 'OTS' are now described with their likelihood. There is no longer reference to the old 'fRenouv' function, and all code chunks now refer to 'fit.Renouv'. The methods for 'Rendata' and 'Renouv' classes are shortly described. BUG FIXES o In 'fit.Renouv', a problem occurred when only one MAX block was given without being enclosed in a list(). o In 'plot.Renouv' it was implicitly assumed that 'L.95' and 'U.95' were present in the table which caused an error in the determination of the y axis. CHANGES IN Renext package VERSION 1.3-1 NEW FEATURES o 'fit.Renouv' now internally uses the function 'plot.Renouv' when its 'plot' formal is set to TRUE CHANGES o Packages 'evd', 'numDeriv' are now required 'Depends'. BUG FIXES o In 'fit.Renouv', a bug affected 'historical data' arguments. It caused problems with "gpd" distribution with historical data. CHANGES IN Renext package VERSION 1.3-0 NEW FEATURES o 'fit.Renouv' now internally uses the function 'plot.Renouv' when its 'plot' formal is set to TRUE CHANGES o Packages 'evd', 'numDeriv' are now required 'Depends'. o In 'makeOTSdata' and 'makeOTSdata' giving a NULL value to the argument data allows to bypass the use of the historical data possibly present in the x object. A similar behaviour is know retained in the the 'fit.Renouv' function. o In 'plot.Renouv', the arguments have been changed. 'pct.conf', and arguments concerning marks suffixed as '.mark'. By default, no mark is shown. The arguments 'main' and 'ylim' have been removed but can still be used through the dots mechanism. The new arguments 'problim' and 'Tlim' allow the user to set the axis limits. When historical data are present in the object, they are now plotted with filled symbols, the filling color indicates the block. BUG FIXES o In 'fit.Renouv' a problem occurred with MAX data when one block was given as a numeric vector (rather than a list). A numeric problem occurred in with 'OTS' data with no threshold exceedances due to the use of r*log(1-F) with r = 0 and F very close to 1. CHANGES IN Renext package VERSION 1.2-0 NEW FEATURES o New function 'fit.Renouv'. This is mainly a cleaned version of 'fRenouv' (which will remains here for a couple of sub-versions). The historical data are now clearly identified as of two types 'MAX' and 'OTS', both using one or several periods called blocks. MAX data (or r-max) are as before with new formals; OTS data use blocks with all values over a known threshold over the main sample threshold. The likelihood is then slightly different than that of the MAX-data case. o New S3 class 'Renouv' with methods: 'summary', 'coefficients', 'predict' and 'plot'. The method 'predict' computes return levels and confidence bounds (when possible), while 'plot' produces a return level plot with the main sample and also historical data when present. o New method for the class 'Rendata': 'summary'. The 'plot' method was slightly changed to show historical data when this is possible. o New function 'OTjitter'. Works like 'jitter' but avoids jiterrized data falling under the threshold. This is used in 'fit.Renouv' to avoid the warning concerning ties in the Kolmogorov-Smirnov test. In practice, there seem to very very little difference in the stat and p-value when jitterizing is used. CHANGES o Vignette. Correction of an error (p. 32) about the return-level. Modification of the parts concerning historical data. CHANGES IN Renext package VERSION 1.1-0 CHANGES o Function 'qmixexp2': quadratic interpolation during the first iterations replaced by a simpler linear interpolation, i.e. a standard Newton-Raphson method, easier to analyse. The method has been secured by placing the iterate below the true unknown root on the basis of concavity, by inflating the derivative if needed. Scale the data through a multiplication of these by the smallest rate names 'rate1', which should improve numerical accuracy. o Vignette. Correction of bugs in the index and around code chunks. The were due to end of lines chars that were moved in the .Rnw source file. o Vignette. Correction of several misspells or typos. Added a figure showing GPD densities for several values of the shape parameter 'xi'.