Version 1.9.4 of gretl is now available from the usual place, http://gretl.sourceforge.net/ Here's the Changelog entry: 2011-02-24 version 1.9.4 - Change the default random number generator from GLib's implementation of the Mersenne Twister to the SIMD-oriented Fast Mersenne Twister - Introduce "addons": approved function packages that are represented in the GUI menus - Add an --accessors option to the "varlist" command, to expose the list of currently available accessor ("dollar") variables - Add more panel data graphing options -- time-series of group means and boxplots by group -- and redesign the GUI for panel plots - GUI code: modify to allow building against gtk3, with a configure option --enable-gtk3 - GUI icon view: provide a graphical representation for saved "bundles" - GUI dialog for calling user-defined functions: several improvements - GUI access to X-12-ARIMA: give option of writing and editing x12a .spc file - GUI test-statistic calculator: fix a bug in the one-variance test - New accessor, $vma: retrieves the vector moving average form of a VAR or VECM - New function, inlist(): gives the position of a series within a named list or zero if the series is not present - New function, isconst(): determines whether a series or vector has a constant value, and optionally tests for either time-invariance or cross-sectional invariance for panel-data series - New function, strsub(): substitutes a specified replacement for a specified sub-string in its first (string) argument - New function, ngetenv(): gets the numerical value of variable in the environment - "estimate" command: document the --quiet flag; and also enable the --quiet option for "system" - "summary" command: add an option to print summary stats for the columns of a named matrix - "outfile" command: add facility to redirect output to stderr or stdout - "setobs" command: add option to attach observation labels from a named file - "heckit" command: switch to use of analytical Hessian for the covariance matrix - New function, errmsg(): returns the gretl error message associated with a given integer error code - New function, rownames(): complements the colnames() function for matrices - New function mrls(); implements restricted least squares estimation for data in matrix form - The sdc() function (column standard deviations): add an optional second argument to control the divisor - New "set" variable, matrix_mask, which can be used to control the included observations when constructing matrices from series - Accessors $test and $pvalue: generalize to allow matrix values (e.g. from the coint2 command); also ensure that these values get recorded when using "restrict" in connection with a system estimator such as SUR - "catch" modifier for commands: make this catch a wider range of errors - Functions corr(), cov() and fcstats(): accept two vector arguments in place of two series - Allow deletion of local matrices within functions - Remove deprecated aliases "noecho" and "seed" - Remove redundant function "makemask" - Fix some memory leaks in the gretl GUI - Storage of data in gdt files: increase the precision for derived series such as logs - Fix: reset model count on exit from user-defined functions - Fix bug: incorrect parsing of command line containing a filename that includes left and/or right parentheses - Fix bug: the $ec accessor for Error Correction terms produced bad results for VECMs where the loadings ("alpha") terms were estimated subject to restrictions - Fix bug: estimates could get out of order for some equation systems if the constant was not given in first place among the regressors - Fix bug: the "diff" command applied to a lead of a series could produce spurious values with panel data - Fix bug: segfault with nested loops when the outer loop resamples the dataset and the inner one generates a series - Fix bug: the function isnull() got broken when the argument is the name of a string variable - Fix bug: incorrect parsing of ARIMA command with "gappy" AR lags specification, e.g. "arima {1 4 5} 1 1 ; y" - Fix bug: the $unit accessor for panel data got broken - Fix bug: the $kalman_t accessor was not working correctly for the case of a filter that employs time-varying matrices - Fix bug: when compacting a dataset using the end-of-period option, one usable observation might be discarded - Fix bugs 3180774 and 3183721 (64-bit build issues) Allin Cottrell