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POCreate a loop that runs function (with parameters which are indices of data set) on all items of the data set?
 

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  1. POCreate a loop that runs function (with parameters which are indices of data set) on all items of the data set?
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    <p>so I've got a function:</p> <pre><code>def connection(n,m,r): is_connected = ((x[n]-x[m])**2 + (y[n]-y[m])**2)**0.5 if is_connected &lt; 2*r: return n + " " + "connects with" + " " + m else: return "no connection" </code></pre> <p>This basically sees whether two circles (with coordinates that correspond to the indices n and m) connect. The n and m parameters refer to the indices in the data sets x and y, which come from a numpy.random array:</p> <pre><code>array([[ 0.31730234, 0.73662906], [ 0.54488759, 0.09462212], [ 0.07500703, 0.36148366], [ 0.33200281, 0.04550565], [ 0.3420866 , 0.9425797 ], [ 0.36115391, 0.16670599], [ 0.95586938, 0.52599398], [ 0.13707665, 0.6574444 ], [ 0.77766138, 0.56875582], [ 0.79618595, 0.7139309 ]]) </code></pre> <p>Since the array is basically 10 sets of coordinates, I have produced two lists out of them, x and y (x is the first column of the array, y is the second). m and n are indices in these lists. Therefore, n and m correspond to indices in the array, but I'm not sure how?</p> <p>What I've been doing now is manually inputting the indices to see whether any two circles in this array connect - is there a -for loop that can do this in a more efficient way?</p>
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      1. POCreate a loop that runs function (with parameters which are indices of data set) on all items of the data set?
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    1. COwhat is the `r` in the function? there are only two values per each item in the array.
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    2. COsorry, r is the radius of the disks who's centres are these coordinates. It will be changed throughout the programme, which is why it is also an argument.
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    3. CO@Amanc if `r` is changed throughout the program independent of the actual coordinates given, it should not be an argument, it should be a member of a class, and the function should be part of the class.
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