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I want the x-axis to be what row the temperature value is in and the y-axis to be the actual value. How do I do this? I printed values to a file into one column.

Tyler Davis
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  • Do you want a histogram? http://matplotlib.org/1.2.1/examples/pylab_examples/histogram_demo.html – Julien Oct 26 '15 at 01:47
  • No I'm making a line plot. I have to export the temperatures to a file that look like 900.227416583 803.500551551 712.488023688 629.361934539 555.650926429 492.179610726 439.093140606 and want to graph each value by which row it's in in a line graph – Tyler Davis Oct 26 '15 at 01:49
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    See http://matplotlib.org/users/pyplot_tutorial.html – Hugh Bothwell Oct 26 '15 at 01:51
  • Building off @Hugh, `plt.plot( row, temp)` – Julien Oct 26 '15 at 01:52
  • @TylerDavis what does the row contain (x-axis)? Since the y-axis is the x-axis the number of the row? – Leb Oct 26 '15 at 01:55
  • each row has a value. it looks like one column of numbers. I want to plot the top number by 0, the second number down as 1 etc. – Tyler Davis Oct 26 '15 at 02:00

1 Answers1

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import matplotlib.pyplot as plt

# get data
with open("data.txt") as myfile:
    temps = [float(row) for row in myfile]

# generate line numbers
num_rows = len(temps)
rownums = list(range(num_rows))   # starting at 0!

# plot
plt.plot(rownums, temps)
plt.show()

which gives

enter image description here

Hugh Bothwell
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