Hi Alan I am little bit confused about the statement, bellow is from your previuos comments
> if fields[0] in s_value: > s_value[fields[0]].append(fields[10]) > else: > s_value[fields[0]]=[fields[10]] > We can tidy that up using the setdefault() method: data = values.setdefault(fields[0],[ [],[] ]) # return lists if avail else empty lists data[0],append(float(fields[10]) data[1],append(float(fields[11]) how ami I gettign the "values" ? as its not defiend anywhere, so how we putting data into variables "values" ? Thanks fror the help On Wed, Feb 24, 2016 at 1:06 AM, Alan Gauld <alan.ga...@btinternet.com> wrote: > On 23/02/16 20:33, Fosiul Alam wrote: > > > > so there are 2 dm (dm-30 and dm-31) wich 3 sample value > > > > dm-30 1.47 36.48 2.82 0.66 270.84 148.56 > > 240.96 0.06 44.99 18.27 6.36 > > dm-31 1.47 36.49 2.82 0.66 270.85 148.58 > > 240.94 0.06 45.03 18.28 6.37 > > dm-30 0.00 0.00 0.00 0.00 0.00 0.00 > > 0.00 0.00 0.00 2.00 1.00 > > dm-31 0.00 0.00 0.00 0.00 0.00 0.00 > > 0.00 0.00 0.00 3.00 1.50 > > dm-30 0.00 0.00 0.00 0.00 0.00 0.00 > > 0.00 0.00 0.00 0.40 0.50 > > dm-31 0.00 0.00 0.00 0.00 0.00 0.00 > > 0.00 0.00 0.00 0.70 0.60 > > > > Basically I am interested with 10 and 11 ( last 2 column) with bellow > > 2 way > > > > a) ignore the firsrt value for each dm ( so line number 1 and 2 will > > totally ignore) : I am having trouble to do that > > We can do that at the end, just before getting the max(). > > > > b) get the max value for clumn 10 and 11 for each dm (dm-30 and dm-31) > > : I am having to do that > > > def _get_io(): > > > > with open (DM,'r')as f: > > content=f.readlines() > > return content > > > > > > s_value= dict() > > u_value=dict() > > > > You don't need two variables here, just one will do, lets just call it > values. > > > > if __name__ == '__main__': > > > > dm_data=_get_io() > > > > for line in dm_data: > > > > You missed the line that split the fields > > fields = line.split() > > > > if fields[0] in s_value: > > s_value[fields[0]].append(fields[10]) > > else: > > s_value[fields[0]]=[fields[10]] > > > > We can tidy that up using the setdefault() method: > > data = values.setdefault(fields[0],[ [],[] ]) # return > lists if avail else empty lists > data[0],append(float(fields[10]) > data[1],append(float(fields[11]) > > See if that gets you closer. > > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > http://www.amazon.com/author/alan_gauld > Follow my photo-blog on Flickr at: > http://www.flickr.com/photos/alangauldphotos > > -- Regards Fosiul Alam _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor