ts@uwasa.fi (Timo Salmi LASK) (06/13/90)
The connection between USA and Europe was down for several days, and there has also been considerable problems with Finnish news-servers. Therefore I shall repost some announcements concerning chyde.uwasa.fi file updates, available by anonymous ftp. If you would like to get prerecorded instructions including how to get files with anonymous ftp, you are welcome to send me email. ................................................................... Prof. Timo Salmi (Moderating at anon. ftp site 128.214.12.3) School of Business Studies, University of Vaasa, SF-65101, Finland Internet: ts@chyde.uwasa.fi Funet: gado::salmi Bitnet: salmi@finfun ................................................................... Mon 11-May-90: I have released a new version of the least absolute deviation (LAD) multiple regression analysis program, statladr.exe, in collaboration with Seppo Pynnonen (sjp@chyde.uwasa.fi), who holds a doctorate in statistics. We have added a (lad) coefficient of determination, which indicates the goodness of fit in the same way as R2 does in the familiar ordinary least squares (OLS) regression. The program now also gives the standard errors of the estimated regression coefficients and their respective t-test values. The estimate of the standard error of the residuals is also calculated. The updated version is available as /pc/ts/ts5st11.arc. LAD multiple regression analysis is part of the set of my statistical programs. The programs in the set are ts1st17.arc Univariate statistical measures. ts2st18.arc Statistics: Multiple regression analysis. ts3st15.arc Statistics: Transformations of observations. ts4st15.arc Statistics: Correlation analysis. ts5st11.arc Least Absolute Deviation regression analysis. Thu 7-Jun-90: Lzexed files pose a problem for the present virus scanners. While waiting to see the announced scanv63 to appear with abilities to scan lzexe-compressed files, I wrote a batch to handle scanning .zip packages. This bacth checks both ordinary and lzexed files within a .zip package. The following shareware and PD programs are needed: pkunzip.exe, scan.exe, islzexe.exe, unlzexe.exe, The packages containing these programs can be found from good BBSes and eg from chyde.uwasa.fi by anonymous ftp. The new batch scanzip.bat is included in the updated /pc/ts/tsbat20.arc batch file collection. Sun 27-May-90: Since the introduction of Fabrice Bellard's excellent executable file compression idea (/pc/pd2/lzexe91.zip) there have emerged a number of useful companion programs. Here is information on some which are available by anonymous ftp from chyde.uwasa.fi from directory /pc/pd2. Because the original program is in French, an English shell lzeshl30.zip has been programmed by Pete Petrakis. - Since the compressed files (usually) have exactly the same name as the original, utilities are needed for identifying which files have been compressed. There are two such utilities currently in the /pc/pd2 directory. They are islzexe.zip by Derrick Burgess, and isl12.zip by Alan Posner. Their user interfaces are somewhat different, so you may adopt them both. - It is also very useful to be able to reverse the compression process. The unlzexe4.zip package by Mitugu Kurizono performs this feat. One problem with lz-compressed executables is the possibility of undetectable viruses. Until the introduction of the announced scanv63, they way to check for on infection is first to decompress, and then apply scanners. Fri 25-May-90: It has been almost exactly a month since the last update in chyde.uwasa.fi /pc/pd2 directory, because I have been rather occupied otherwise. In the meanwhile we have had the sad news of the cutbacks in Simtel20, which is an unfortunate loss to the net. - This time I have update an131.zip of the Ample Notice calendar reminder. The shell for lzexe executable files compression program has been updated to be lzeshl30.zip. I have obtained a new (shell-type) utility tozip51.zip for converting other packing methods to .zip. The excellent whereis file finder is now in version where37.zip. Shez shell for all kinds of archives has been updated to shez55.zip. The file list of Micro Maniacs Opus (358-0-425966) files-mm.zip is again up-to-date.