i have two columns of numbers in a text file which is the columns of time and stress respectively which i get it from an analysis in abaqus finite element package ! i want to extract the time column and stress column in seperate lists ( a list for time and another list for stress ) . and then use this lists to do some other mathematical operations and . . . my problem is how to create this lists ! my text file is as follows : (the first line of the text file and the four lines from the bottom of that is empty!)
X FORCE-1
0. 0.
10.E-03 98.3479E+03
12.5E-03 122.947E+03
15.E-03 147.416E+03
18.75E-03 183.805E+03
22.5E-03 215.356E+03
26.25E-03 217.503E+03
30.E-03 218.764E+03
33.75E-03 219.724E+03
37.5E-03 220.503E+03
43.125E-03 221.938E+03
51.5625E-03 228.526E+03
61.5625E-03 233.812E+03
You can read your file line by line
time = []
stress = []
count =0
with open("textfile.txt") as file:
for line in file:
line = line.strip() #removing extra spaces
temp = line.split(" ")
if count>=3 and temp[0].strip() : #checking empty string as well
time.append(temp[0].strip()) #removing extra spaces and append
stress.append(temp[len(temp)-1].strip()) #removing extra spaces and append
count+=1
print time
Output running above script
['0.', '10.E-03', '12.5E-03', '15.E-03', '18.75E-03', '22.5E-03', '26.25E-03', '30.E-03', '33.75E-03', '37.5E-03', '43.125E-03', '51.5625E-03', '61.5625E-03']