On Monday, November 23, 2015 at 12:58:49 PM UTC-8, Crane Ugly wrote:
> Thank you all.
> Here is the last piece of code that caused me so much troubles but now
> working the way I wanted it:
>
> fRawData = []
> with open(fStagingFile2) as fStagingFile2FH:
> fRawData = [line.strip() for line in
> fStagingFile2FH.readlines()] # #### This is to read each element from
> the file and chop off the end of line character
>
> fNumberOfColumns = 7
> fNumberOfRows = len(fRawData)/fNumberOfColumns
>
> fRowID = 0
> fParameters = []
> for fRowID in range(0, len(fRawData), fNumberOfColumns):
> fParameters.append(fRawData[fRowID:fRowID+fNumberOfColumns])
> # #### This is to convert 1D array to 2D
>
> # #### ... and down below section is an example of how to read each
> element of the list
> # #### and how to update it if I need so. That was also a problem before.
> fRowID = 0
> fColumnID = 0
> for fRowID in range(fNumberOfRows):
> for fColumnID in range(fNumberOfColumns):
> if fColumnID == 0:
> fParameters[fRowID][fColumnID] = "XXXX"
> Message2Log("fParameters[" + str(fRowID) + "][" +
> str(fColumnID) + "] = " + str(fParameters[fRowID][fColumnID]))
>
> CU
>
> On Saturday, November 21, 2015 at 4:52:35 PM UTC+1, Nathan Hilterbrand wrote:
> > On 11/21/2015 10:26 AM, BartC wrote:
> > > On 21/11/2015 10:41, vostrus...@gmail.com wrote:
> > >> Hi,
> > >> I have a file with one parameter per line:
> > >> a1
> > >> b1
> > >> c1
> > >> a2
> > >> b2
> > >> c2
> > >> a3
> > >> b3
> > >> c3
> > >> ...
> > >> The parameters are lines of characters (not numbers)
> > >>
> > >> I need to load it to 2D array for further manipulations.
> > >> So far I managed to upload this file into 1D array:
> > >>
> > >> ParametersRaw = []
> > >> with open(file1) as fh:
> > >> ParametersRaw = fh.readlines()
> > >> fh.close()
> > >
> > > I tried this code based on yours:
> > >
> > > with open("input") as fh:
> > > lines=fh.readlines()
> > >
> > > rows = len(lines)//3
> > >
> > > params=[]
> > > index=0
> > >
> > > for row in range(rows):
> > > params.append([lines[index],lines[index+1],lines[index+2]])
> > > index += 3
> > >
> > > for row in range(rows):
> > > print (row,":",params[row])
> > >
> > > For the exact input you gave, it produced this output:
> > >
> > > 0 : ['a1\n', 'b1\n', 'c1\n']
> > > 1 : ['a2\n', 'b2\n', 'c2\n']
> > > 2 : ['a3\n', 'b3\n', 'c3\n']
> > >
> > > Probably you'd want to get rid of those \n characters. (I don't know
> > > how off-hand as I'm not often write in Python.)
> > >
> > > The last bit could also be written:
> > >
> > > for param in params:
> > > print (params)
> > >
> > > but I needed the row index.
> > >
> > To get rid of the '\n' (lineend) characters:
> >
> > with open(file1) as fh:
> > ParametersRaw = [line.strip() for line in fh.readlines()]
> >
> > or, more succinctly..
> >
> > with open(file1) as fh:
> > ParametersRaw = [line.strip() for line in fh]
> >
> > Comprehensions are your friend.
> >
> > Nathan
What is the significance of prefixing all your variables with "f"? I've
frequently seen people use it to signify the variable is a float, but you're
using it for things that aren't floats.
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