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POpython math operations on list contents before output.write
 

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  1. POpython math operations on list contents before output.write
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    <p>I will put here a code with two endings, one that works, another that doesn't.</p> <p><em>I won't emphasize on what the purpose of the code is, since it is not the problem here...</em></p> <p><strong>The difference between my two endings</strong> is that in the second solution (that crashes), I wanted to apply some modification of the data.</p> <p>Here's the beginning of the code which is commons to the two <code>.py</code> files:</p> <pre><code>import tetgen, geometry from pprint import pprint import random, csv import numpy as np from pprint import pprint all_colors = [(name, float(X), float(Y), float(Z)) for name, X, Y, Z in csv.reader(open('colors.csv'))] priority_list = {name: int(i) for i, name in csv.reader(open('priority.csv'))} # background is marked SUPPORT support_i = [i for i, color in enumerate(all_colors) if color[0] == 'SUPPORT'] if len(support_i)&gt;0: support = np.array(all_colors[support_i[0]][1:]) del all_colors[support_i[0]] else: support = None tg, hull_i = geometry.tetgen_of_hull([(X,Y,Z) for name, X, Y, Z in all_colors]) colors = [all_colors[i] for i in hull_i] print ("thrown out: " + ", ".join(set(zip(*all_colors)[0]).difference(zip(*colors)[0]))) targets = [(name, float(X), float(Y), float(Z), float(BG)) for name, X, Y, Z, BG in csv.reader(open('targets.csv'))] for target in targets: name, X, Y, Z, BG = target target_point = support + (np.array([X,Y,Z]) - support)/(1-BG) tet_i, bcoords = geometry.containing_tet(tg, target_point) AT = (1-BG) </code></pre> <p>After this, the solution (let's call it (1)) works:</p> <pre><code> output = open('solution_AT.txt','a') if tet_i == None: output.write(str(target[0])) output.write('\n') else: names = [colors[i][0] for i in tg.tets[tet_i]] sorted_indices = sorted(enumerate(names), key=lambda (i, name): priority_list[name]) output.write(target[0]) counting = 0 for i, name in sorted(enumerate(names), key=lambda (i, name): priority_list[name]): output.write(',%s,%s' % (name, bcoords[i]*AT)) counting = counting + 1 if counting &gt; 3: output.write('\n') counting = 0 output.close() </code></pre> <p>but not the solution (2):</p> <pre><code> output = open('solution_AT.txt','a') if tet_i == None: output.write(str(target[0])) output.write('\n') else: names = [colors[i][0] for i in tg.tets[tet_i]] sorted_indices = sorted(enumerate(names), key=lambda (i, name): priority_list[name]) output.write(target[0]) counting = 0 for i, name in sorted(enumerate(names), key=lambda (i, name): priority_list[name]): counting = counting + 1 top = bcoords[i]*AT output.write(',%s,%s' % (name, top)) if counting &gt; 0: counting = counting + 1 cheese = bcoords[i]*AT output.write(',%s,%s' % (name, cheese/(1-top))) if counting &gt; 1: counting = counting + 1 meat = bcoords[i]*AT output.write(',%s,%s' % (name, meat/(1-top-cheese))) if counting &gt; 2: counting = counting + 1 bread = bcoords[i]*AT output.write(',%s,%s' % (name, bread/(1-top-cheese-meat)) if counting &gt; 3: output.write('\n') counting = 0 output.close() </code></pre> <p>I am getting the error: <code>Failed to run script - syntax error - invalid syntax</code> and the pointer says it's there (where I put "|") : <code>if counting &gt; |3:</code></p> <p>Do you have any idea why??</p> <p>As you can see, what I am trying to do is to apply these <strong>"top/cheese/meat"</strong> formulae to <code>bcoords[i]</code>, see below:</p> <p><strong>pseudocode:</strong></p> <pre><code>if counting = 0 // this is the initial value I want: - top = bcoords[i]*AT - counting = 1 if counting = 1 // the next value... - cheese = bcoords[i]*AT - output.write(',%s,%s' % (name, cheese/(1-top)) - counting = 2 if counting = 2 - meat = bcoords[i]*AT - output.write(',%s,%s' % (name, meat/(1-top-cheese)) - counting = 3 if counting &gt; 2: - counting = counting + 1 - bread = bcoords[i]*AT - output.write(',%s,%s' % (name, bread/(1-top-cheese-meat)) </code></pre> <p>But it doesn't works AT ALL!</p> <p>Any idea?</p> <p>Thanks</p>
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    1. USadrienlucca.wordpress.com
    1. USadrienlucca.wordpress.com
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    1. This table or related slice is empty.
    1. COIs there a traceback/error message?
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      1. POpython math operations on list contents before output.write
      1. USJohn La Rooy
    2. COthe script fails to run: `Failed to run script: syntax error -invalid syntax` and it stops there (where I put: "|") : `if counting > 1|:`
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      1. POpython math operations on list contents before output.write
      1. USadrienlucca.wordpress.com
    3. COcan it be just an indentation issue?? I tried many variants but didn't solve anything
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      1. USadrienlucca.wordpress.com
 

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