I have data in a .txt file (the file is called numbers.txt) that I'd like to display graphically (line graph). The contents of the file are something like
6 8 2 4 8 // 1 6 8 9 3 // 1 6 8 5 6 // 3 5 6 8 9 //
where // represents a new row.
What I would like to do is write some code that would take a column, for example the first (6 ,1 ,1 ,3) and display it on a line graph. So this graph would have the coordinates (1, 6), (2, 1), (3, 1), (4, 3).
I'm new to python, so I can imagine this is basic stuff. Any help would be appreciated.
Thank you
What about something like this?
with open('numbers.txt') as f: # read file
data = [list(map(int, S.split())) # numbers as integers
for s in f.read().split(' //') # from split string
if (S:=s.strip())] # walrus operator python ≥ 3.8
import matplotlib.pyplot as plt
# create axes
ax = plt.subplot()
# set up X values
xs = list(range(1, len(data)+1))
# plot each line
for i, ys in enumerate(zip(*data), start=1):
ax.plot(xs, ys, label=f'line_{i}')
ax.legend()
output: