Gretl Changelog

What's new in Gretl 1.8.7

Mar 4, 2010

GUI enhancement: add apparatus to help keep track of gretl windows
GUI menus: clean-up and consolidation
New command: "qqplot" (Quantile-Quantile plots)
Normal random samples: implement the Ziggurat method
"dataset" command: document the "clear" keyword
"rmplot" command: save $test and $pvalue
"restrict" with --bootstrap option: record $test and $pvalue
"corrgm" and "xcorrgm": allow the lag order to be given as a named scalar variable
VECMs: add $ec accessor
VARs: remove $vcv accessor
VARs and VECMs: enable accessors $df, $ncoeff and $xtxinv
BFGSmax function: add facility for supplying analytical derivatives
Eviews data importer: handle more cases of .wf1 files
BFGS: make the degree of verbosity tunable via "set bfgs_verbskip"
Fix bug: crash on error in user_matrix_ols()
Fix bug: "append" for data should work in more cases
Fix bug: saving a model when there is already a saved model of the same name (in the GUI) caused a crash
Fix bug: setting of sub-sample information on models estimated with a loop construct
Fix bug: the GUI option for reporting standardized residuals for GARCH models got broken
Fix bug: handling of on-the-fly matrices in "printf"
Fix bugs: miscellaneous small GUI bugs
Fix bugs 2918790, 2918783, 2918775, 2917053

New in Gretl 1.8.0 (Mar 27, 2009)

Fix bug: crash in "Add random variable" dialog
Translation fixes
Add new command: "modprint"
Remove obsolete commands: "rhodiff" and "hccm"
Speed-ups for the pdf() function as applied to a series argument
New option --numeric for the nls and mle commands, to force the use of numerical derivatives
Numerous small graphing and GUI fixes
MS Windows: fix for opening graphs in old session files
Graphs: "display PDF" option: fix possible encoding issue
GUI graph controller: new facility to add a line, defined via a formula, to an existing graph
GUI graph controller: add facility to choose point style
Gnuplot line-color selector: extend to 6 colors, and distinguish between setting the "palette" and setting ad hoc colors for a specific graph
Scalars: make these accessible via the icon view window; enable copying to clipboard as CSV; enable entry of a formula (starting with "=") in scalar-editing window
Fix encoding issue when copying to clipboard as plain text or RTF
Boxplots: hand the production of these over to gnuplot
New function: urcpval(), gives user access to James MacKinnon's p-values for unit root and cointegration test statistics (tau)
New function: mpols(), enables multiple-precision OLS for user-defined matrices
New function: toepsolv(), solves a Toeplitz system of linear equations
New function: mcovg(), matrix covariogram
Improve error-reporting in relation to GUI genr dialog
Make parsing of input from GUI ARMA dialog more robust
New feature: add importer for SPSS .sav files
CSV importer: try to handle time-series data in reverse chronological order
"fcast": allow variables for the startobs and endobs arguments; add "rolling" k-step-ahead option
Fix bug in ADF --verbose printout (wrong p-value shown for one lagged difference in some cases)
GUI plot editor: translate the gnuplot style strings
Switch to more compact tabular form for presenting model statistics
OLS and fixed effects: add option to calculate p-value for the Durbin-Watson statistic
Add accessors $Fstat and $chisq for the overall F-statistic or chi-square test from the last model
Make the "restrict" command available for nls, mle and gmm
Improve forecasting options for nls models
Add model menu item: "Modify model", under the Edit menu, provides a clone of the model specification
Loops: allow the "gnuplot" command, operating strictly in batch mode
New command "intreg": implements interval regression
Several updates to the documentation
Fix bugs 2042328, 2472732, 2510727, 2510759