Mailman 3 April 2003 - SciPy-User

Traits: Problem with my first example.
by Donald 'Paddy' McCarthy May 25, 2003

May 25, 2003

Hi, I have just found out about traits and tried out the following example: ############ from traits import * class Person ( HasTraits ): __traits__ = { 'name': '', 'age': 9, 'weight': 0.0 } bill = Person() #bill.configure_traits( filename = None, edit = 1, traits = None ) bill.configure_traits( filename = 'xx.save', edit = 1 ) bill.edit_traits() ############# When run (Windows XP, wxwindows), the gui pops up as expected, but when I save my changes the program exits with the following error: C:\Documents and Settings\Paddy\My Documents>python -V Python 2.2.2 C:\Documents and Settings\Paddy\My Documents>python traitScript1.py 09:22:58: Debug: c:\projects\wx\src\msw\app.cpp(439): 'UnregisterClass(canvas)' failed with error 0x00000584 (class still has open windows.). Can you tell me what I am doing wrong? Also, the file of trait values generated is not editable text, is their a reason for this? Thanks., Paddy.

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Re: SciP
by Travis E. Oliphant April 30, 2003

April 30, 2003

Todd A Pitts wrote: > Travis, > > I got my new linux box and am now installing SciPy. I get the > following error... > > Also, in your installation notes you might add that the > setup_scipy_distutils module comes from f2py. The latest version > installs but fails to add > scipy_distutils.pth to the site-packages directory. A new user > installing SciPy will have to first find and fix this problem before > he can get SciPy running. It is true that distutils is also used by f2py, but I did not think that f2py was the intended source of any needed module of SciPy. I'm not sure how they worked that out. I have checked out SciPy from scratch several times and did not run into this problem. > > -Todd > > tapitts@sadl18818:SciPy-0.2.0_alpha_196.4120$ /usr/local/bin/python2.2 > setup.py build > Traceback (most recent call last): > File "setup.py", line 111, in ? > setup_package() > File "setup.py", line 90, in setup_package > config_list += map(get_separate_package_config,separate_packages) > File "setup.py", line 74, in get_separate_package_config > return get_package_config(name,'') > File "setup.py", line 67, in get_package_config > mod = __import__('setup_'+os.path.basename(name)) > ImportError: No module named setup_scipy_test I suspect that this is due to a packaging error. I always check out the latest CVS tree and cannot vouch for the source-file packages. I'm not sure why, but they always manage to leave out several files. It looks like you may be missing the entire scipy_core directory. I just built a source distribution on my machine and it seemed to include the setup_scipy_test.py file so I'm not sure what's wrong with your source tree. I'll send you what I have in a separate mail. I'm cross-posting this to the scipy-user list to see if anyone else has had similar troubles. -Travis > > A look for modules beginning with setup* gives > > tapitts@sadl18818:src$ find . -name "setup*" > ./python/setup.py > ./python/Tools/idle/setup.py > ./Numeric/setup.cfg > ./Numeric/setup.py > ./Numeric/Packages/FFT/setup.py > ./Numeric/Packages/MA/setup.py > ./Numeric/Packages/Properties/setup.py > ./Numeric/Packages/RNG/setup.py > ./Numeric/Packages/kinds/setup.py > ./gist/setup.py > ./Imaging/setup.py > ./PyOpenGL-2.0.0.44/setup > ./PyOpenGL-2.0.0.44/setup.py > ./ScientificPython/setup.cfg > ./ScientificPython/setup.py > ./SciPy-0.2.0_alpha_196.4120/Lib/gui_thread/setup_gui_thread.py > ./SciPy-0.2.0_alpha_196.4120/Lib/gui_thread/setup_gui_thread.pyc > ./SciPy-0.2.0_alpha_196.4120/Lib/weave/setup_weave.py > ./SciPy-0.2.0_alpha_196.4120/Lib/weave/setup_weave.pyc > ./SciPy-0.2.0_alpha_196.4120/Lib_chaco/chaco/setup_chaco.py > ./SciPy-0.2.0_alpha_196.4120/Lib_chaco/kiva/setup_kiva.py > ./SciPy-0.2.0_alpha_196.4120/Lib_chaco/traits/setup_traits.py > ./SciPy-0.2.0_alpha_196.4120/setup.py > ./F2PY-2.32.225-1419/docs/usersguide/setup_example.py > ./F2PY-2.32.225-1419/other/scipy_distutils/setup_scipy_distutils.py > ./F2PY-2.32.225-1419/other/scipy_distutils/setup.py > ./F2PY-2.32.225-1419/setup.py > ./F2PY-2.32.225-1419/build/lib/scipy_distutils/setup_scipy_distutils.py > ./F2PY-2.32.225-1419/build/lib/scipy_distutils/setup.py > > > I seem to be missing a file. Any hints you might provide? > > -Todd > >

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Aut�nomo com Internet
by Elmer April 30, 2003

April 30, 2003

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Remember Mother's Day 11th May 2003
by Prince's Flower Shop Pte Ltd April 27, 2003

April 27, 2003

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PLEASE CONFIRM URGENTLY.
by WILLIAMS OGUNYINKA. April 23, 2003

April 23, 2003

DATE 22nd APRIL 2003 WILLIAMS OGUNYINKA ESQ LAGOS, THE FEDERAL REPUBLIC OF NIGERIA. HELLO DEAR, I AM BARRISTER WILLIAMS OGUNYINKA, A SOLICITOR AT LAW.I AM THE PERSONAL ATTORNEY TO MR.BUFFET EDMOND, A NATIONAL OF THE UNITED KINGDOM, WHO USED TO WORK WITH SHELL PETROLEUM DEVELOPMENT COMPANY IN THE REPUBLIC OF GABON.ON THE 21st OF APRIL 2000,MY CLIENT, HIS WIFE AND THEIR ONLY DAUGHTER WERE INVOLVED IN A CAR ACCIDENT ALONG SAGBAMA EXPRESS ROAD.ALL OCCUPANTS OF THE VEHICLE UNFORTUNATELY LOST THERE LIVES. SINCE THEN I HAVE MADE SEVERAL ENQUIRIES TO THE PEOPLE I KNOW HERE TO LOCATE ANY OF MY CLIENTS EXTENDED RELATIVES, THIS HAS ALSO PROVED UNSUCCESSFUL. AFTER THESE SEVERAL UNSUCCESSFUL ATTEMPTS,I DECIDED TO TRACK HIS NAME OVER THE INTERNET,TO LOCATE ANY MEMBER OF HIS FAMILY HENCE I CONTACTED YOU TO ASSIST IN RECOVERING THE FUND VALUED AT US$14.9 MILLION LEFT BEHIND BY MY CLIENT BEFORE IT GETS CONFISCATED OR DECLARED UNSERVICEABLE BY THE SECURITY FINANCE FIRM WHERE THIS HUGE AMOUNT WERE DEPOSITED. THE SAID FINANCIAL INSTITUTION HAS ISSUED ME A NOTICE TO PROVIDE THE NEXT OF KIN OR HAVE THE ACCOUNT CONFISCATED WITHIN THE NEXT SIXTY ONE OFFICIAL WORKING DAYS.SINCE I HAVE BEEN UNSUCCESSFUL IN LOCATING THE RELATIVES FOR FOR OVER 2 YEARS NOW I THEREFORE SEEK YOUR CONCENT TO PRESENT YOU AS THE NEXT OF KIN TO THE DECEASED, SO THAT THE PROCEEDS OF THIS ACCOUNT CAN BE PAID TO YOU. ON RECEIPT OF YOUR POSITIVE RESPONSE, WE SHALL THEN DISCUSS THE SHARING RATIO AND MODALITIES FOR TRANSFER.I HAVE ALL NECESSARY INFORMATION AND LEGAL DOCUMENTS NEEDED TO BACK YOU UP FOR CLAIMS ALL I REQUIRE FROM YOU IS YOUR HONEST COOPERATION TO ENABLE US SEE THIS TRANSACTION THROUGH. I GUARANTEE THAT THIS WILL BE EXECUTED UNDER LEGITIMATE ARRANGEMENT THAT WILL PROTECT YOU FROM ANY BREACH OF LAW. PLEASE NOTE THAT I AM PRESENTLY IN LAGOS THE FEDERAL REPUBLIC OF NIGERIA IN PURSUANCE OF THIS SUBJECT MATTER SINCE THE FINANCIAL INSTITUTION IS BASED HERE. BEST REGARDS WILLIAMS OGUNYINKA ESQ

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PLEASE CONFIRM URGENTLY.
by WILLIAMS OGUNYINKA. April 23, 2003

April 23, 2003

DATE 22nd APRIL 2003 WILLIAMS OGUNYINKA ESQ LAGOS, THE FEDERAL REPUBLIC OF NIGERIA. HELLO DEAR, I AM BARRISTER WILLIAMS OGUNYINKA, A SOLICITOR AT LAW.I AM THE PERSONAL ATTORNEY TO MR.BUFFET EDMOND, A NATIONAL OF THE UNITED KINGDOM, WHO USED TO WORK WITH SHELL PETROLEUM DEVELOPMENT COMPANY IN THE REPUBLIC OF GABON.ON THE 21st OF APRIL 2000,MY CLIENT, HIS WIFE AND THEIR ONLY DAUGHTER WERE INVOLVED IN A CAR ACCIDENT ALONG SAGBAMA EXPRESS ROAD.ALL OCCUPANTS OF THE VEHICLE UNFORTUNATELY LOST THERE LIVES. SINCE THEN I HAVE MADE SEVERAL ENQUIRIES TO THE PEOPLE I KNOW HERE TO LOCATE ANY OF MY CLIENTS EXTENDED RELATIVES, THIS HAS ALSO PROVED UNSUCCESSFUL. AFTER THESE SEVERAL UNSUCCESSFUL ATTEMPTS,I DECIDED TO TRACK HIS NAME OVER THE INTERNET,TO LOCATE ANY MEMBER OF HIS FAMILY HENCE I CONTACTED YOU TO ASSIST IN RECOVERING THE FUND VALUED AT US$14.9 MILLION LEFT BEHIND BY MY CLIENT BEFORE IT GETS CONFISCATED OR DECLARED UNSERVICEABLE BY THE SECURITY FINANCE FIRM WHERE THIS HUGE AMOUNT WERE DEPOSITED. THE SAID FINANCIAL INSTITUTION HAS ISSUED ME A NOTICE TO PROVIDE THE NEXT OF KIN OR HAVE THE ACCOUNT CONFISCATED WITHIN THE NEXT SIXTY ONE OFFICIAL WORKING DAYS.SINCE I HAVE BEEN UNSUCCESSFUL IN LOCATING THE RELATIVES FOR FOR OVER 2 YEARS NOW I THEREFORE SEEK YOUR CONCENT TO PRESENT YOU AS THE NEXT OF KIN TO THE DECEASED, SO THAT THE PROCEEDS OF THIS ACCOUNT CAN BE PAID TO YOU. ON RECEIPT OF YOUR POSITIVE RESPONSE, WE SHALL THEN DISCUSS THE SHARING RATIO AND MODALITIES FOR TRANSFER.I HAVE ALL NECESSARY INFORMATION AND LEGAL DOCUMENTS NEEDED TO BACK YOU UP FOR CLAIMS ALL I REQUIRE FROM YOU IS YOUR HONEST COOPERATION TO ENABLE US SEE THIS TRANSACTION THROUGH. I GUARANTEE THAT THIS WILL BE EXECUTED UNDER LEGITIMATE ARRANGEMENT THAT WILL PROTECT YOU FROM ANY BREACH OF LAW. PLEASE NOTE THAT I AM PRESENTLY IN LAGOS THE FEDERAL REPUBLIC OF NIGERIA IN PURSUANCE OF THIS SUBJECT MATTER SINCE THE FINANCIAL INSTITUTION IS BASED HERE. BEST REGARDS WILLIAMS OGUNYINKA ESQ

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scipy.optimize.leastsq col_deriv strangeness w/ data fit
by John Hunter April 21, 2003

April 21, 2003

I am using leastsq to do a best fit to a simple exponential function. In my test script, I find that if I use col_deriv=0, I get a different answer than I get if I do a col_deriv=1 with the err func returning the transposed jacobian. When I compare the true parameters with the best fit parameters, the correct answer is with col_deriv=1 but not with col_deriv=0. Am I misusing this parameter or is something amiss? In the data fitting problem, x is the independent variable with parameters parsTrue. I create the data values by assuming they are data = func(pars) + noise Here is the test script that works, to fit the data to where func(pars) is a*exp(alpha*x) + k To get the best fit params, I minimize over pars data - func(pars) ------------------------------------------------------------ from scipy import exp, arange, zeros, Float, ones from RandomArray import normal from scipy.optimize import leastsq parsTrue = 2.0, -.76, 0.1 # a, alpha, k x = arange(0, 4, 0.001) def func(pars): a, alpha, k = pars return a*exp(alpha*x) + k def errfunc(pars): return data - func(pars) #return the error def deriv_errfunc(pars): 'The Jacobian of the errfunc is -Jacobian of the func' a, alpha, k = pars J = zeros( (3,len(x)), Float) # init the Jacobian only once #deriv with respect to a J[0,:] = -exp(alpha*x) #deriv with respect to alpha J[1,:] = -x*a*exp(alpha*x) #deriv with respect to k J[2,:] = -ones((len(x),), Float) # this is indep of k return J # some pseudo data; add some noise data = func(parsTrue) + normal(0.0, 0.1, x.shape) guess = 1.0, -.4, 0.0 # the intial guess of the params best, info, ier, mesg = leastsq(errfunc, guess, full_output=1, Dfun=deriv_errfunc, col_deriv=1, ) print 'true', parsTrue print 'best', best ------------------------------------------------------------ This returns best fit params true (2.0, -0.76000000000000001, 0.10000000000000001) best [ 2.00487303 -0.74859602 0.09035577] However, If I replace the deriv_errfunc with row derivs, manually transposing the jacobian at creation time def deriv_errfunc(pars): 'The Jacobian of the errfunc is -Jacobian of the func' a, alpha, k = pars J = zeros( (len(x),3), Float) # init the Jacobian only once # deriv with respect to a J[:,0] = -exp(alpha*x) # deriv with respect to alpha J[:,1] = -x*a*exp(alpha*x) # deriv with respect to k J[:,2] = -ones((len(x),), Float) return J and best, info, ier, mesg = leastsq(errfunc, guess, full_output=1, Dfun=deriv_errfunc, col_deriv=0, ) The fit is poor, eg, true (2.0, -0.76000000000000001, 0.10000000000000001) best [ 1.13708025 -0.40303463 0.1669024 ] With col_deriv=0 sometimes the solution is found and sometimes not depending on the run, but it is consistently around the values reported above (ie, wrong). With col_deriv=1, though, the solution is always found and is correct. Suggestions? John Hunter

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by Patrick T April 21, 2003

April 21, 2003

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Problems with scipy.integrate.ode
by David Linke April 19, 2003

April 19, 2003

Hi! I am having problems with the set_f_params() method in ode.py. An example showing the use of set_f_params() to supply additional arguments (two or more) to f would be very heplful. I tried a while to get it going but without success. I observed strange behaviour when using a modified function test1 in ode.py to receive additional arguments: def test1(): #def f(t,y): def f(t,y,b): print type(b), b a = Numeric.sin(6*t) return y*y-a+y ode_runner = ode(f) ode_runner.set_integrator('vode') ode_runner.set_initial_value([0.1,0.11,.1]*10) par_b = 0.1, ode_runner.set_f_params(par_b) while ode_runner.successful() and ode_runner.t < 20: y1 = ode_runner.integrate(ode_runner.t+2) print ode_runner.t,y1[:3] Is this the right way to use set_f_params? When I run this example the arguments are passed to f only in the first two calls, as shown here: Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on win32 >>> Integrators available: vode Found integrator vode <type 'tuple'> (0.10000000000000001,) ! 1st call ... 2.0 [-0.1446766 -0.10226142 -0.1446766 ] <type 'tuple'> (0.10000000000000001,) ! 2nd call ... 4.0 [-0.6351882 -0.5874518 -0.6351882] <type 'tuple'> (<NULL>,) ! 3rd call ... 6.0 [-0.93274299 -0.92029838 -0.93274299] <type 'tuple'> (<NULL>,) 8.0 [-1.06178405 -1.05979417 -1.06178405] ... Thank you for any help. David

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IN ANTICIPATION OF YOUR ASSISTANCE.
by Jack Mboma. April 17, 2003

April 17, 2003

Mboma Jack, 0031-630-681-971 mboma(a)rediffmail.com. Sir, HIGHLY CONFIDENTIAL You may be surprised to receive this message from me since you don't know me in person but for the purpose Of introduction, I am Mr. Jack Mboma, the son of late Mr. Jamie Mboma, who was murdered in a land dispute in ZIMBABWE. My late father was among the few black Zimbabwean rich farmers murdered in cold blood by the agent of the ruling government of President ROBERT MUGABE for his alleged support and Sympathy for Zimbabwean opposition party. Before the death of my father, he took me to South Africa to deposit the sum of fifteen million two Hundred thousand US Dollars ($15.2m) with a security and finance company, as if he knew the looming danger In Zimbabwe. The money was deposited as gem or precious stone to avoid much demurrage from the Security firm. This money was earmarked for the purchase of new machinery and chemicals for our farms and the establishment of new farms in Lesotho and Swaziland. This land problem arose when President R. MUGABE introduced a new land act which wholly affects the White rich farmers and some few blacks vehemently condemned the 'MODUS OPERANDI' adopted by the Government. This resulted to rampant killing and mob actions. I and my family who are currently staying in Holland as refugees' asylum seekers and we have moved the money through a contact at a security company here in Holland with a branch in South Africa. I am faced with the dilemma of collecting this money from the security company by ourselves because we are refugees and also, we do not want the money to be traced to us. We need you to come up as the beneficiary and next of kin to this money so that you can help us receive the money from the security company for us all. If you agree, we shall use some document and paper work (Deed of Assignment) to put you as the next of kin and beneficiary. I must let you know that this business is 100% risk Free, timely and the nature of your business does not necessarily matter. So if you are willing to assist us, I and my family have agreed to give you 25% of the Total money, while 70% will be for I and my family which we shall also invest in your Country with your advice and the remaining 5% will be mapped out for any incidental expenses which we may incur during the transaction. Therefore, if you are willing and interested to render the needed assistance, endeavour to reply through this my Email address.Remember that this is highly confidential and the Success of this business depends on how secret it is kept. Please where you are not interested; do not discuss this matter with any body. I shall bring you into a more detailed picture of this transaction when you reply me. Best Regards, Jack Mboma.

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