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PORead CSV and Separate by column
 

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    <p>Brand new to Python (and programming in general), if this is simple and/or answered somewhere I didn't find, feel free to harass me in typical forum fashion.</p> <p>I've got a bunch of CSVs, each containing 10 XY coordinates like this:</p> <pre><code>10,5 2,4 5,6 7,8 9,12 3,45 2,4 6,5 0,3 5,6 </code></pre> <p>I'm looking to separate the X coordinates and Y coordinates into two seperate lists, so that I can subtract a value from each value in a given list. For example, subtracting 5 from every value in the X coordinate list and 3 from every value in the Y coordinate list. I'm then going to take the abs() of each value and find the minimum. Once those minimums are found, I want to add the lists together so that each value is added to it's counterpart</p> <p>IE) if the absolute values of X were something like</p> <pre><code>4 5 .... </code></pre> <p>and Y something like</p> <pre><code>6 7 .... </code></pre> <p>I'd want to add 4 and 6, then 5 and 7, etc. </p> <p>To separate them, I tried </p> <pre><code>import csv filein = open("/path/here") reader = csv.reader(filein, skipinitialspace = True) listofxys = [] for row in reader: listofxys.append(row) Xs = listofxys.pop(0) # to pop all the X's Ys = listofxys.pop() # to pop all the Y's </code></pre> <p>But instead of all the leading values, it provides the first XY pair. What am I doing wrong here?</p> <p>The eventual goal is to find the closest point to an XY coordinate, so if this is a bad way to go about it, feel free to steer me in another direction. </p> <p>Thanks in advance!</p>
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