| Conditions | 9 |
| Total Lines | 55 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | # -*- coding: utf-8 -*- |
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| 34 | def analyse_mean_norm(self, laser_data, signal_start=0.0, signal_end=200e-9, norm_start=300e-9, |
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| 35 | norm_end=500e-9): |
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| 36 | """ |
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| 37 | |||
| 38 | @param laser_data: |
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| 39 | @param signal_start: |
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| 40 | @param signal_end: |
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| 41 | @param norm_start: |
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| 42 | @param norm_end: |
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| 43 | @return: |
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| 44 | """ |
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| 45 | # Get number of lasers |
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| 46 | num_of_lasers = laser_data.shape[0] |
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| 47 | # Get counter bin width |
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| 48 | bin_width = self.fast_counter_settings.get('bin_width') |
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| 49 | |||
| 50 | if not isinstance(bin_width, float): |
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| 51 | return np.zeros(num_of_lasers), np.zeros(num_of_lasers) |
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| 52 | |||
| 53 | # Convert the times in seconds to bins (i.e. array indices) |
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| 54 | signal_start_bin = round(signal_start / bin_width) |
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| 55 | signal_end_bin = round(signal_end / bin_width) |
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| 56 | norm_start_bin = round(norm_start / bin_width) |
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| 57 | norm_end_bin = round(norm_end / bin_width) |
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| 58 | |||
| 59 | # initialize data arrays for signal and measurement error |
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| 60 | signal_data = np.empty(num_of_lasers, dtype=float) |
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| 61 | error_data = np.empty(num_of_lasers, dtype=float) |
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| 62 | |||
| 63 | # loop over all laser pulses and analyze them |
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| 64 | for ii, laser_arr in enumerate(laser_data): |
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| 65 | # calculate the sum and mean of the data in the normalization window |
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| 66 | tmp_data = laser_arr[norm_start_bin:norm_end_bin] |
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| 67 | reference_sum = np.sum(tmp_data) |
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| 68 | reference_mean = (reference_sum / len(tmp_data)) if len(tmp_data) != 0 else 0.0 |
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| 69 | |||
| 70 | # calculate the sum and mean of the data in the signal window |
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| 71 | tmp_data = laser_arr[signal_start_bin:signal_end_bin] |
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| 72 | signal_sum = np.sum(tmp_data) |
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| 73 | signal_mean = (signal_sum / len(tmp_data)) if len(tmp_data) != 0 else 0.0 |
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| 74 | |||
| 75 | # Calculate normalized signal while avoiding division by zero |
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| 76 | if reference_mean > 0 and signal_mean >= 0: |
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| 77 | signal_data[ii] = signal_mean / reference_mean |
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| 78 | else: |
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| 79 | signal_data[ii] = 0.0 |
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| 80 | |||
| 81 | # Calculate measurement error while avoiding division by zero |
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| 82 | if reference_sum > 0 and signal_sum > 0: |
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| 83 | # calculate with respect to gaussian error 'evolution' |
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| 84 | error_data[ii] = signal_data[ii] * np.sqrt(1 / signal_sum + 1 / reference_sum) |
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| 85 | else: |
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| 86 | error_data[ii] = 0.0 |
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| 87 | |||
| 88 | return signal_data, error_data |
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| 89 | |||
| 128 |