Mailman 3 September 2019 - SciPy-User

How to display a RGB image (MFISH)?
by jp 02 Apr '23

02 Apr '23

Hi, I have written a script to try to combine five images into a three channels RGB images<http://dip4fish.blogspot.com/2011/05/trying-to-combine-mfish-images-into-rg…> . The resulting RGB image looks like a grey scale image instead of a color one. I have three np.array Rnorm, Gnorm, Bnorm which are copied into a rgb array: *rgb = np.zeros((shape[0],shape[1],3),dtype=float) mxr=np.max(R) mxg=np.max(G) mxb=np.max(B) Rnorm=np.uint8((255*(R/mxr)))Gnorm=np.uint8((255*(R/mxg)))Bnorm=np.uint8((255*(R/mxb)))#copy each RGB component in an RGB array rgb[:,:,0]=Rnorm rgb[:,:,1]=Gnorm rgb[:,:,2]=Bnorm* *pylab.subplot(224, aspect='equal',frameon=False, xticks=[], yticks=[]) pylab.imshow(rgb) pylab.show()* Any advice? Thank you Jean-Patrick

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Invitation to connect on LinkedIn
by Jelle Feringa via LinkedIn 28 Jul '22

28 Jul '22

LinkedIn ------------ Jelle Feringa requested to add you as a connection on LinkedIn: ------------------------------------------ Jose, I'd like to add you to my professional network on LinkedIn. - Jelle Accept invitation from Jelle Feringa http://www.linkedin.com/e/-3wy1w2-gpkzwpgn-5n/Q6WKH0LACopGJkAw_6fSqajo6R7VM… View invitation from Jelle Feringa http://www.linkedin.com/e/-3wy1w2-gpkzwpgn-5n/Q6WKH0LACopGJkAw_6fSqajo6R7VM… ------------------------------------------ DID YOU KNOW your LinkedIn profile helps you control your public image when people search for you? Setting your profile as public means your LinkedIn profile will come up when people enter your name in leading search engines. Take control of your image! http://www.linkedin.com/e/-3wy1w2-gpkzwpgn-5n/ewp/inv-22/ -- (c) 2011, LinkedIn Corporation

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Help required regding Eigenvectors
by Sudheer Phani 14 Mar '22

14 Mar '22

Hello All, I have been encountering some strange problems with the calculation of eigen vectors using python. The problem is with the sign of the eigen vectors calculated. On Very few occasions the eigen vectors calculated using python have an opposite sign than the actual eigenvectors, though the magnitude is correct. Can any one of you plz help me in this regard and suggest me some solution if you have encoutered similar problems . Any help in this regd is appreciated Thanks in Advace regds Sudheer

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ANN: SfePy 2019.3
by Robert Cimrman 24 Sep '19

24 Sep '19

I am pleased to announce release 2019.3 of SfePy. Description ----------- SfePy (simple finite elements in Python) is a software for solving systems of coupled partial differential equations by the finite element method or by the isogeometric analysis (limited support). It is distributed under the new BSD license. Home page: http://sfepy.org Mailing list: https://mail.python.org/mm3/mailman3/lists/sfepy.python.org/ Git (source) repository, issue tracker: https://github.com/sfepy/sfepy Highlights of this release -------------------------- - interface to eigenvalue problem solvers in SLEPc - new Python 3 enabled Timer class and other Python 3 compatibility fixes For full release notes see [1]. Cheers, Robert Cimrman [1] http://docs.sfepy.org/doc/release_notes.html#id1 --- Contributors to this release in alphabetical order: Robert Cimrman Vladimir Lukes

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Building Scipy -Build from source on windows
by Harishkumar TR 20 Sep '19

20 Sep '19

Hi Team, I am having issue in building the SciPy from source . Please see the attached log for more details. I am building scipy from source on windows.x64 platform. I read the doc from here https://docs.scipy.org/doc/scipy/reference/building/windows.html#building-t… Command used: python setup.py bdist_wheel ERROR c:/mingw/bin/../lib/gcc/mingw32/8.2.0/../../../../mingw32/bin/ld.exe: build\temp.win-amd64-3.7\scipy\integrate\quadpack\dqc25f.o: in function `dqc25f_': c:/mingw/bin/../lib/gcc/mingw32/8.2.0/../../../../mingw32/bin/ld.exe: C:\Users\aime\Desktop\bachint\python_3.7.4_packages\scipy\1.3.1\scipy-1.3.1/scipy/integrate/quadpack/dqc25f.f:235: undefined reference to `dgtsv_' collect2.exe: error: ld returned 1 exit status My Fortune compiler is in place and lapack is in place. Can it be possible to help to fix this issue? Or if any build notes you can provide is a great help. In simple steps how to build sciupy?? Regards, Harish

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[ANN] modeling for bifacial photovoltaic solar panesl in Python by SunPower
by Dr. Mark Alexander Mikofski PhD 09 Sep '19

09 Sep '19

SunPower has just released the latest version of pvfactors (v1.2.0), a Python package for modeling the incident irradiance on bifacial photovoltaic (PV) which are solar panels that can generate energy from both the front and back surfaces. PyPI: https://pypi.org/project/pvfactors/ Thanks SunPower! -- Mark Mikofski, PhD (2005) *Fiat Lux*

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NumPy 1.17.2 released.
by Charles R Harris 06 Sep '19

06 Sep '19

Hi All, On behalf of the NumPy team I am pleased to announce that NumPy 1.17.2 has been released. This release contains fixes for bugs reported against NumPy 1.17.1 along with some documentation improvements. The most important fix is for lexsort when the keys are of type (u)int8 or (u)int16. If you are currently using 1.17 you should upgrade. The Python versions supported in this release are 3.5-3.7, Python 3.8b4 should work with the released source packages, but there are no future guarantees. Downstream developers should use Cython >= 0.29.13 for Python 3.8 support and OpenBLAS >= 3.7 to avoid wrong results on the Skylake architecture. The NumPy wheels on PyPI are built from the OpenBLAS development branch in order to avoid those problems. Wheels for this release can be downloaded from PyPI <https://pypi.org/project/numpy/1.17.2/>, source archives and release notes are available from Github <https://github.com/numpy/numpy/releases/tag/v1.17.2>. *Contributors* A total of 7 people contributed to this release. People with a "+" by their names contributed a patch for the first time. - CakeWithSteak + - Charles Harris - Dan Allan - Hameer Abbasi - Lars Grueter - Matti Picus - Sebastian Berg *Pull requests merged* A total of 8 pull requests were merged for this release. - #14418: BUG: Fix aradixsort indirect indexing. - #14420: DOC: Fix a minor typo in dispatch documentation. - #14421: BUG: test, fix regression in converting to ctypes - #14430: BUG: Do not show Override module in private error classes. - #14432: BUG: Fixed maximum relative error reporting in assert_allclose. - #14433: BUG: Fix uint-overflow if padding with linear_ramp and negative... - #14436: BUG: Update 1.17.x with 1.18.0-dev pocketfft.py. - #14446: REL: Prepare for NumPy 1.17.2 release. Cheers, Charles Harris

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