I am a complete beginner and try to create the file erg.csv with two columns (values of yPlus and uPlus):
yPlus uPlus
separated by a \t.
result:
0 " new line
"
0 " new line
"
2 . 4 6 0 7 3 "
"
2 . 4 6 0 7 3 "
"
4 . 9 2 1 4 6 "
"
4 . 9 2 1 4 6 "
"
...
instead of:
0 \t 0
2.46073 \t 2.4607
4.92146 \t 4.92146
...
def create_file():
f_in = open("folder/experiment.xy","r")
f_out = open("erg.csv","w",encoding="utf8")
writer = csv.writer(f_out,delimiter=" ")
while 1:
zeile = f_in.readline()
if len(zeile) == 0:break
expr = r"\s(?P<yPlus>[0-9.]*\n)"
erg = re.search(expr,zeile)
yPlus = erg.group('yPlus')
yPlus = str(yPlus)
if type(erg.group('yPlus')) == str:
if float(yPlus) <= 12:
writer.writerows([yPlus] + [yPlus])
#rowstr = "{0:s}\t{1:s}".format(yPlus,yPlus)
#writer.writerows([yPlus,yPlus])
else:
uPlus = calc_uPlus(float(yPlus))
#uPlus = str(uPlus)
rowstr = "{0:s}\t{1:6.2f}".format(yPlus,uPlus)
writer.writerows(rowstr)
else:
print("Stop! type(erg.group('yPlus') no string.")
f_in.close()
f_out.close()
def calc_uPlus(yP):
uP = ( 2.439 * math.log(yP) + 5.2 )
return(uP)
I've unsuccessfully tried, with two versions, to get the required result:
writer.writerows([yPlus] + [yPlus])
and
rowstr = "{0:s}\t{1:6.2f}".format(yPlus,uPlus)
writer.writerows(rowstr)
Could anybody help? Thank's a lot!
If yplus
and uplus
are the left and right column, respectively, you'll need to combine them beforehand to use writerows
:
import csv
c = csv.writer(open("file.csv", "wb"), delimiter="\t")
yplus = [1, 2]
uplus = [3, 4]
c.writerows(zip(yplus, uplus))
Or, if you'd rather use writerow
instead of writerows
:
for l, r in zip(yplus, uplus):
c.writerow([l,r])
The above will both output:
1\t2
3\t4
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.