As you show it, mass will be a string, so you'll need to convert it to a float first, then add it to a list. You can then manipulate the values in the list to compute your mean, or whatever, which matplotlib can use as input to its plot() function or whichever type of plot you're after. Alternatively, since the Python numpy module is made for manipulating data like this, it can probably read your data in a single function call and easily compute the things you want. However, if you are really that new to programming, you may struggle, so I'd suggest reading first going to scipy.org and reading up on numpy. When you understand the basics of numpy, matplotlib's documentation should make a lot more sense.
Gary On Thu, Aug 25, 2011 at 6:48 AM, surfcast23 <surfcas...@gmail.com> wrote: > > I am fairly new to programing and have a question regarding matplotlib. I > wrote a python script that reads in data from the outfile of another program > then prints out the data from one column. > > f = open( 'myfile.txt','r') > for line in f: > if line != ' ': > line = line.strip() # Strips end of line character > columns = line.split() # Splits into coloumn > mass = columns[8] # Column which contains mass values > print(mass) > > What I now need to do is have matplotlib take the values printed in 'mass' > and plot number versus mean mass. I have read the documents on the > matplotlib website, but they don't really address how to get data from a > script(or I just did not see it) If anyone can point me to some > documentation that explains how I do this it would be really appreciated. > Thanks in advance > > -- > View this message in context: > http://old.nabble.com/How-do-you-Plot-data-generated-by-a-python-script--tp32328822p32328822.html > Sent from the matplotlib - users mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > EMC VNX: the world's simplest storage, starting under $10K > The only unified storage solution that offers unified management > Up to 160% more powerful than alternatives and 25% more efficient. > Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------------ EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
