Mailman 3 April 2001 - NumPy-Discussion

simple array help?
by Pete Shinners Sept. 17, 2001

Sept. 17, 2001

i have a simple array with floating values >>> print a array([ 0. , 0.2, 0.4, 0.6, 0.8]) what i need to do is change each index into another dimension with 3 indices. hmm, kind of confusing, an example will explain better >>> b = array(zip(a,a,a)) >>> print b array([[ 0. , 0. , 0. ], [ 0.2, 0.2, 0.2], [ 0.4, 0.4, 0.4], [ 0.6, 0.6, 0.6], [ 0.8, 0.8, 0.8]]) ok, this does the job, but once i start using large arrays, the back-… [View More]

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Numpy install problems
by Michael D. Risser July 27, 2001

July 27, 2001

When attempting to install Numeric 17.0 with Python 1.5.2 and Distutils 1.0 on Red Hat 7.0, I get the following error after issuing the command 'python setup.py install' Traceback (innermost last): File "setup.py", line 15, in ? vs = map(string.atoi, v.groups()) AttributeError: 'None' object has no attribute 'groups' This error occurs regardless of whether or not I am root. I have also tried uninstalling the Red Hat Python packages and installing all from source, but I get the same … [View More]

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[Q]Best way for an array operation?
by Daehyok Shin May 4, 2001

May 4, 2001

What is the best Numpy way for the following work? for i in range(len(x)): if x[i] > 0: y[i] = v[i] z[i] = u[i]+2 Daehyok Shin (Peter)

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For Python 6.1b2 you need a new Pyfort
by Paul F. Dubois May 3, 2001

May 3, 2001

There is a new Pyfort release 6.3 that lets Pyfort work with Python 6.1b2. Please get it from http://sourceforge.net/projects/pyfortran if you are using 6.1b2. This Pyfort will work just fine with any Python version it used to work with.

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Re: [Numpy-discussion] Can't assign sequence to PyObject array
by Stuart I Reynolds April 30, 2001

April 30, 2001

Actually your example works for me too. Looks like only it only works for 1D arrays, >>> a1 = array([range(5), range(5)]).astype('O') >>> a1 array([[0 , 1 , 2 , 3 , 4 ], [0 , 1 , 2 , 3 , 4 ]],'O') >>> a2 = arange(6) >>> a2 array([0, 1, 2, 3, 4, 5]) >>> a1[1,1] = a2 Traceback (most recent call last): File "<stdin>", line 1, in ? ValueError: array too large for destination >>> a1 = arange(5).astype('O') >>> a1[1] = a2 … [View More]

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[Annouce] Numeric Python 20.0.0b2
by Paul F. Dubois April 26, 2001

April 26, 2001

Numpy has been restructured slightly to enable use of distutils to build: Source .tar.gz Source .zip Windows installer (a real installer, not just a zip you unzip) RPM Source RPM Individual Windows installers for optional packages You can get these from http://sourceforge.net/projects/numpy. Changes are: Version 20.0 Redo setup.py so that binary windows installers for Numeric, FFT, MA, etc. can be made automatically. Packages LALITE and RANLIB merged back to top level. Adjustment … [View More]

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Tagging the CVS repository
by Jack Jansen April 25, 2001

April 25, 2001

I'd like to request that the CVS repository be tagged when a distribution is made. I'm building the MacPython 2.1 distribution (which includes numeric) and I was forced to include Numeric 20.0.0b2, because there wasn't a tag that allowed me to check out 19.0 or another stable release... -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | ++++ see http://www.xs4all.nl/~tank/ ++++

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Numeric 20.0.0b2 on OS X
by Tim Lahey April 25, 2001

April 25, 2001

All, It appears that Paul's changes to Numeric now allow the Numeric modules to at least be imported under Mac OS X. I'll be testing the code further in the next week or so. Thanks Paul! Cheers, Tim Lahey

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Installers for Numeric
by Paul F. Dubois April 23, 2001

April 23, 2001

Dear Nummies, If you picked up the source installer for 20.0.0b2 in the first hour after I released it, it will die when building "kinds". Since you probably don't care, everything else will have been done by then. I have fixed both the .tar.gz and .zip source distributions now. This egregious error gives me the chance to say that I haven't the slightest idea whether the rpm and source rpm work. I just made 'em with Distutils. You rpm freaks out there will have to check it out and if it needs … [View More]

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Can't assign sequence to PyObject array
by Stuart I Reynolds April 19, 2001

April 19, 2001

Is there a standard workaround to allow you to assign a sequence to a a single cell in PyObject array? from Numeric import * # Create a 2*5 array a = array([range(5),range(5)], PyObject) a[0,0] = 4 #OK - assigns an int to element 0,0 a[0,3] = {} #OK - assigns a dict # but, trying to assign an array to element 1,4 # (or any sequence) a[1,4] = array(range(10), Float) The last assignment causes, ValueError: array too large for destination error Doh!! Presumably its trying to treat this as … [View More]

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