Hi Sayan,
This question would be better suited to the matplotlib list.
Also, a more precise description of your existing data, and what you hope it
would look like would make it easier to help answer your question. Eg., from
your description, it is not clear if your existing data is in a
Hi Sayan,
Thank Andre for your prompt answer.
No problem.
I'll figure out the plotting issue once the dat files are made. So it's the
primary concern.
For an example I am attaching a dat file herewith. The two columns here are 2
numpy arrays.I want to add a third column, to be precise,
-Z axis).
I hope your first example might help.Though,I think,I need some tweaking to
fit to my needs.
Regards,
Sayan
On 10 April 2013 22:38, Andre' Walker-Loud walksl...@gmail.com wrote:
Hi Sayan,
Thank Andre for your prompt answer.
No problem.
I'll figure out the plotting
Hi Sayan,
Yup it's exactly what I want!
I want many data files,not one...to make an animation out of it. For a data
file t is constant.
You should not need many data files to make an animation. If you write your
loops correctly, you can take a single data file with all the data. If you
Hi Sayan,
Is it that? We can have different plots and hence animation from a single
data file.Very good!...if you have some time in your disposal, it will be
kind of you to illumine in this matter...may be some useful link will do.
I have written this small code from scratch,there's no
Hi Rail,
I'm attempting to write a script with command-line arguments. Based on some
reading I have done online and some advice from this mailing list I'm going
to use docopt and schema modules. The problem I'm facing is that I'd like to
be able to give this script to anyone who needs it
Hi David,
I'm trying to use python for analysing data from building energy simulations
and was wondering whether there is way to do this without using anything sql
like.
The simulations are typically run for a full year, every hour, i.e. there are
8760 rows and about 100+ variables
Hi All,
I have a general question. I have never taken a formal programming course. I
have learned everything I know from office mates (earlier on) and now mostly
Google, as I need it. Most everything I write is only for my own consumption.
I write scripts/programs to do science research,
Dear Matthew,
I don't need to hear how bad my programs are...either you are gonna help or
your not...if you have questions about what i have wrote or why i wrote
something someway ask...dont just jump to conclusions
I forgot to include that i had to write a stack function in a
Hi Santosh,
On Jul 17, 2012, at 10:09 PM, Santosh Kumar wrote:
Here is my script:
name = raw_input(What's your name? )
if name == Santosh:
print Hey!! I have the same name.
elif name == John Cleese or Michael Palin:
print I have no preference about your name. Really!!
else:
On Jul 17, 2012, at 10:29 PM, Alexandre Zani wrote:
On Tue, Jul 17, 2012 at 10:21 PM, Andre' Walker-Loud
walksl...@gmail.com wrote:
Hi Santosh,
On Jul 17, 2012, at 10:09 PM, Santosh Kumar wrote:
Here is my script:
name = raw_input(What's your name? )
if name == Santosh
Hello anonymous questioner,
first comment - you may want to look into hdf5 data structures
http://www.hdfgroup.org/HDF5/
and the python tools to play with them
pytables - http://www.pytables.org/moin
h5py - http://code.google.com/p/h5py/
I have personally used pytables more - but not for any
, 2012 at 4:41 PM, Andre' Walker-Loud walksl...@gmail.com
wrote:
Hello anonymous questioner,
first comment - you may want to look into hdf5 data structures
http://www.hdfgroup.org/HDF5/
and the python tools to play with them
pytables - http://www.pytables.org/moin
h5py - http
Hi Greg,
I'm new to python, is schooling a python-developer thing? Whether I ask for
help at forums, IRC or here, someone schools me. Should I stick with Java?
No, the python mailing list is for the most part, very friendly and helpful (in
my experience).
Mark's message that you not hijack
import numpy as np
Vhel_fdiff3 = np.array([abs(Vmatch3_1 - Vmatch3_2), abs(Vmatch3_1 -
Vmatch3_3), abs(Vmatch3_3 - Vmatch3_2)])
your_answer = Vhel_fdiff3.max(axis=0)
or
import numpy as np
a = np.array([Vmatch3_1-Vmatch3_2, Vmatch3_1-Vmatch3_3, Vmatch3_3-
Vmatch3_2])
print
Hi Elaina,
Vhel_fdiff3=[]
for i in xrange(len(Vmatch3_1)):
Vhel_fdiff3.append(max([abs(Vmatch3_1[i] - Vmatch3_2[i]),abs(Vmatch3_1[i]
- Vmatch3_3[i]),abs(Vmatch3_3[i] - Vmatch3_2[i])]))
#print Vhel_fdiff3
#appending writes a list, but numpy which makes the with_ work needs an
Hi Elaina,
just reading your question (and responses). There is an issue with what you
wrote in the email, which may help.
for row in dat:
gcoords=ICRSCoordinates(dat['ra-drad'],dat['dec-drad'],radians=True).convert(GalacticCoordinates)
This line is identical to the one that broke
Hi Michael,
I bet there is a better way (which I would like to see), but here is what I
have come up with for my own uses.
ints = []
u_in = False
while u_in == False:
try:
u_input = raw_input('please enter 5 integers, space separated\n
')
for n in
Exercise 17, extra credit 6 Learn python the hard way: Find out why
you had to do output.close() in the code.
Code:
output.close()
input.close()
I don't get it. If you don't close input and output it works exactly
the same as if you would close them, so why do you have to do
Hi Steven,
(5) When assembling strings from substrings, never use repeated concatenation
using + as that can be EXTREMELY slow. Use str.join to build the string in
one assignment, instead of multiple assignments.
Your code shown above is *very* inefficient and will be PAINFULLY slow if m
What type of databases? sql server, mysql, sqllite?
Hi James,
well this already helps. I don't even know. Do I have to know ahead of time?
Or is there a general database package that can open a databases without
knowing there format?
Thanks,
Andre
package that can open a databases without knowing there format?
The Python DB API is pretty good at covering all the common databases but
sadly everyone has some slight variances so you do need to know which product
you will be using.
As an example the SQLite package that comes in the
You might look at http://www.sqlalchemy.org/, since it works with most
databases. However if you are new on databases, I think you should start
learning databases basics, choose a database management system (DBMS)
that fit your needs and learn as much as you can about that specific
DBMS.
thank you for all of the resonses, I have attempted all of the suggestions.
It is a numpy array so I can try another list if you would prefer but I
thought I would show the error anyway.
the error I am receiving is
ValueError: The truth value of an array with more than one element is
Hi anonymous questioner,
Like Alan, I suspect you are using numpy as
import numpy as N
there is probably a numpy email list where this would be more appropriate
(personally I don't object, but I don't want to speak for all the subscribers).
the 2nd attempt is closer to the right answer. To
Dear Anonymous Questioner,
I am not sure how the Windows environment works, but in linux, I would replace
for ncfile in glob.glob('.nc'):
with
for ncfile in glob.glob('*.nc'):
ie, add the wild card '*' character to grab all files which end in '.nc'
Andre
On Aug 29,
and files!
Could it be because I am trying to select folders within other folders to
then get a file from each of those folders?
On Tue, Aug 30, 2011 at 1:30 PM, Andre' Walker-Loud walksl...@gmail.com
wrote:
Dear Anonymous Questioner,
I am not sure how the Windows environment works
at 1:40 PM, Andre' Walker-Loud walksl...@gmail.com
wrote:
hello,
yes, I would also try adding a wild card in the dir search
for dir in glob.glob(MainFolder + '01\*'):
to check if this is helps, in an interpreter (rather than script) try
dirs = glob.glob(MainFolder + '\01\*'):
print
Hello anonymous questioner,
ok, thanks for your help Andre
your welcome. hope you continue enjoying python.
Andre
On Tue, Aug 30, 2011 at 2:37 PM, Andre' Walker-Loud walksl...@gmail.com
wrote:
to have multiple dirs is simple,
for dir in glob.glob(MainFolder + '*/01/') + glob.glob
Hello Anonymous Questioner,
First - you will probably be told this isn't the correct email list for this
question - this is a general python tutorial list, while your question is numpy
specific, so if this doesn't help, you should probably look to another email
list.
There are a couple
On Jun 13, 2011, at 1:44 PM, Emile van Sebille em...@fenx.com wrote:
On 6/12/2011 1:55 PM Andre' Walker-Loud said...
Hi Alan,
* Or you just get used to the fact that some numbers are not exact in
floating point.
This got me thinking. How many decimal places do you need to
accurately
Hi Alan,
* Or you just get used to the fact that some numbers are not exact in
floating point.
This got me thinking. How many decimal places do you need to
accurately, say, aim a laser somewhere in a 180 degree arc accurately
enough to hit a dime on the surface of the moon?
Here is a
Hi Michael,
You have to do three (four) things.
1 - make a directory where you want your executables to live (after you have
created them)
on my machine, I copy everything to /usr/local/walkloud/bin/ which requires
sudo, but you can put them anywhere in your $PATH
2 - in your .tcshrc or
Andre
Thanks again for your responses. I am using MS Windows 7, and it turns out
there was a problem with build and re-installing EPD fixed it. I appreciate
the help, I am so new at this, I don't know if things aren't working because
it is me, or because something else is wrong (I feel
Hi Ezra,
Are you using Mac OSX or LINUX or ...
If you have a preexisting python installation, it may be that when you launch
python, it loads the older version, and not the new EPD version. When you
launch python, what do you see? For example, on my Mac OSX, launched from
Terminal, I get
%
Hi All,
I want to print scientific numbers with a specified number of decimal places.
However, I want the number printed to be dynamically determined by the data.
Example:
a = 0.00762921383941
ea = 0.000830132912068
a / ea
9.190352205653852
By default, I will print the uncertainty (ea)
On Oct 5, 2010, at 3:43 PM, Alan Gauld wrote:
Andre' Walker-Loud walksl...@gmail.com wrote
a = 0.00762921383941
ea = 0.000830132912068
a / ea
9.190352205653852
By default, I will print the uncertainty (ea) with two significant digits.
In this example, the central value is about 10 times
.
Thanks,
Andre
On Oct 5, 2010, at 6:39 PM, Wayne Werner wrote:
On Tue, Oct 5, 2010 at 7:51 PM, Andre' Walker-Loud walksl...@gmail.com
wrote:
Hi Alan,
The point I can not get to work is
fmt = %.%de + %.1e % n else:
when I try this, I get (python 2.6.5, OS X 10.6)
n = 3; fmt
Hi All,
I have a simple question. I am writing a little program that will
make some plots of data files. I want to have optional args to pass,
for example to specify the plot ranges. I have never written a script/
code that takes optional args (but I have used plenty) - so I am
feeling
Hi Sander,
On Thu, 2009-10-29 at 17:30 -0400, Andre Walker-Loud wrote:
I have a simple question. I am writing a little program that will
make some plots of data files. I want to have optional args to pass,
for example to specify the plot ranges. I have never written a
script/
code
Hi All,
I am thinking of creating a data analysis suite with python, and I
want it to be interactive - ie the program asks the user (me) for
input, like which data file to use, how many parameters to minimize,
etc. There are a few features I want it to have, like graphing, both
the
Hi there,
I am using python to do some scripting. In particular, I am using it
to run some jobs which require precision inputs. I do this by having
python write an input file, which I then feed to some other program.
The problem I am having is getting python to write number into this
if you want accuracy and are willing to sacrifice the total range of
numbers that Python's IEEE754 double-precision floats give you, then
use the decimal.Decimal class instead -- better precision, smaller
range.
however, if you wish to stick with floats, use the string format
operator and
Hi All,
lets say I am in Dir A (out of my control because I have submitted a
job to a queuing system)
and I have a python script which is running in this directory - the
one I submitted to the queue
what I need to do is have my python script run another executable,
but it must do it from
.
Cheers,
Andre
On Oct 4, 2007, at 5:13 PM, Alan Gauld wrote:
Andre Walker-Loud [EMAIL PROTECTED] wrote
If I were using CSH, I could do all this very simply by having these
lines in my script
### .csh file
cd /scratch
my_exe.csh
The best answer is to use subprocess as Kent
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