Wolfgang M. Hartmann (Dr.rer.nat., Dr.sc.nat.)
Copyright Wolfgang M. Hartmann.
Until February 2007:
Living in Morrisville NC Working in Cary NC
Starting March 2007: Living in Germany, working on CMAT.
Page last updated April 2013
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Wolfgang M. Hartmann (Dr.rer.nat., Dr.sc.nat.)Copyright Wolfgang M. Hartmann.Until February 2007: Living in Morrisville NC Working in Cary NC Starting March 2007: Living in Germany, working on CMAT.
Page last updated April 2013
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Copyright Thorarinn R. Einarsson and Wolfgang M. Hartmann. That movie describes the events that moved me from a well paid employment of the East German Academy of Sciences in Berlin to the West.
Here is a scanned version of the "Zufuehrungsprotokoll" from my public protest at the Altmarkt in Dresden. And here the first page of my court sentence. Both, the SED judge Mueller and the Stasi prosecutor Wagner (with his East German salary on the list of Stasi employees), are being paid now about five times as much pension than I have! And that is probably similar to ninety percent of all former political prisoners. So much to that unification treaty signed by Kohl and Schaeuble!
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Associate Editor at JSS since startup in 1995 until July 2013. |
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CMAT (Copyright Wolfgang M. Hartmann)CMAT is just another interactive language which is an extension of C for matrix algebra and nonlinear optimization and estimation. That means, for scalar operations, the syntax of CMAT is compatible with that of the C language. Even though CMAT is similar to Gauss, MATLAB, and IML; it is not a clone of any of these. CMAT is in some degree self learning.Data types are string, integer, real, and complex. Objects may consist of mixed data type (string and numeric). No special routines are necessary for sparse matrix algebra, CMAT decides for sparse operations whenever a specified percentage of zeros are present. CMAT interprets in the first run through the input code. At each following pass, assembler code is executed, saving some computer time. CMAT is using software packages like BLAS and LAPACK. Among many other functions CMAT permits the optimization of smooth and nonsmooth objective functions, quadrature of multidimensional integrals, the iterative solution of large linear systems, has an interface to ARPACK, includes a wide range of probability functions, a number of robust and nonlinear estimation methods, among them ML regression and GLIMs with fixed and random effects, and contains an advanced multi-sample SEM implementation with a variety of bootstrap methods. It has a number of features for nonnormal data, like Satorra-Bentler robust chisquare, robust ASEs, and Bollen-Stine bootstrap. It incoporates feature (variable) selection algorithms that work easily up to 100,000 variable's. It comes with a small frontend written in Tcl/TK. Wolfgang works on CMAT since Walee moved to New Orleans and and it became clear to Wolfgang that working overtime at SAS would not be honored anyway. Here is a short summary manual describing the elements of the language and here some more information about CMAT including some more technical papers. |
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Nobody can tell ya; There's only one song worth singin'. They may try and sell ya, 'cause it hangs them up to see somone like you.
But you've gotta make your own kind of music
So if you cannot take my hand,
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You're gonna be knowing the loneliest kind of lonely. It may be rough goin', just to do your thing's the hardest thing to do. But you've gotta make your own ...
So if you cannot take my hand,
You gotta make your own kind of music
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Come gather 'round people Wherever you roam And admit that the waters Around you have grown And accept it that soon You'll be drenched to the bone. If your time to you Is worth savin' Then you better start swimmin' Or you'll sink like a stone For the times they are a-changin'.
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Come writers and critics Who prophesize with your pen And keep your eyes wide The chance won't come again And don't speak too soon For the wheel's still in spin And there's no tellin' who That it's namin'. For the loser now Will be later to win For the times they are a-changin'.
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Come senators, congressmen Please heed the call Don't stand in the doorway Don't block up the hall For he that gets hurt Will be he who has stalled There's a battle outside ragin'. It'll soon shake your windows And rattle your walls For the times they are a-changin'.
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Come mothers and fathers Throughout the land And don't criticize What you can't understand Your sons and your daughters Are beyond your command Your old road is Rapidly agin'. Please get out of the new one If you can't lend your hand For the times they are a-changin'.
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The line it is drawn The curse it is cast The slow one now Will later be fast As the present now Will later be past The order is Rapidly fadin'. And the first one now Will later be last For the times they are a-changin'.
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When I was a young man I carried me pack And I lived the free life of the rover From the Murray's green basin to the dusty outback I waltzed my Matilda all over Then in 1915 my country said: Son, It's time to stop rambling, there's work to be done So they gave me a tin hat and they gave me a gun And they sent me away to the war
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And the band played Waltzing Matilda When the ship pulled away from the quay And amid all the tears, flag waving and cheers We sailed off for Gallipoli
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It well I remember that terrible day When our blood stained the sand and the water And how in that hell they call Suvla Bay We were butchered like lambs at the slaughter Johnny Turk, he was ready, he primed himself well He rained us with bullets, and he showered us with shell And in five minutes flat, we were all blown to hell He nearly blew us back home to Australia
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And the band played Waltzing Matilda When we stopped to bury our slain Well we buried ours and the Turks buried theirs Then it started all over again
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Oh those that were living just tried to survive In that mad world of blood, death and fire And for ten weary weeks I kept myself alive While around me the corpses piled higher Then a big Turkish shell knocked me arse over head And when I awoke in me hospital bed And saw what it had done, I wished I was dead I never knew there was worse things than dying
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Oh no more I'll go Waltzing Matilda All around the green bush far and near For to hump tent and pegs, a man needs both legs No more waltzing Matilda for me
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They collected the wounded, the crippled, the maimed And they shipped us back home to Australia The armless, the legless, the blind and the insane Those proud wounded heroes of Suvla And when the ship pulled into Circular Quay I looked at the place where me legs used to be And thank Christ there was no one there waiting for me To grieve and to mourn and to pity
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And the Band played Waltzing Matilda When they carried us down the gangway Oh nobody cheered, they just stood there and stared Then they turned all their faces away
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Now every April I sit on my porch And I watch the parade pass before me I see my old comrades, how proudly they march Renewing their dreams of past glories I see the old men all tired, stiff and worn Those weary old heroes of a forgotten war And the young people ask "What are they marching for?" And I ask myself the same question
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And the band plays Waltzing Matilda And the old men still answer the call But year after year, their numbers get fewer Someday, no one will march there at all
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Waltzing Matilda, Waltzing Matilda Who'll come a-Waltzing Matilda with me? And their ghosts may be heard as they march by the billabong So who'll come a-Waltzing Matilda with me?
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There's a man goin' 'round takin' names, And he decides who to free and who to blame. Everybody won't be treated all the same, There'll be a golden ladder reachin' down. When the man comes around.
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Till Armageddon no shalam, no shalom. Then the father hen will call his chickens home, The wise man will bow down before the throne. And at his feet they'll cast their golden crowns, When the man comes around.
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The hairs on your arm will stand up, At the terror in each sip and in each sup. Will you partake of that last offered cup, Or disappear into the potter's ground? When the man comes around.
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Whoever is unjust let him be unjust still. Whoever is righteous let him be righteous still. Whoever is filthy let him be filthy still. Listen to the words long written down, When the man comes around.
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Hear the trumpets hear the pipers. One hundred million angels singin'. Multitudes are marchin' to the big kettledrum. Voices callin', voices cryin'. Some are born and some are dyin'. It's alpha and omega's kingdom come, And the whirlwind is in the thorn tree. The virgins are all trimming their wicks, The whirlwind is in the thorn tree. It's hard for thee to kick against the pricks.
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Hear the trumpets hear the pipers. One hundred million angels singin'. Multitudes are marchin' to the big kettledrum. Voices callin', voices cryin'. Some are born and some are dyin'. It's alpha and omega's kingdom come, And the whirlwind is in the thorn tree. The virgins are all trimming their wicks, The whirlwind is in the thorn trees. It's hard for thee to kick against the prick, In measured hundredweight and penny pound, When the man comes around.
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