As long as they consist of built-in types that already handle copying correctly, Python’s copy module will be clever enough to make both shallow and deep copies of your custom objects straight away. Note: Python’s behavior differs from that of other programming languages, where objects don...
Ashallow copyconstructs a new compound object and then inserts references into it to the objects found in the original. This process is not recursive and hence doesn't create copies of the child object. In shallow copy, a reference of object is copied to another object, meaning any changes ...
An alternative is a deep copy, meaning that fields are dereferenced: rather than references to objects being copied, new copy objects are created for any referenced objects, and references to these placed in B. The result is different from the result a shallow copy gives in that the objects ...
I've been meaning forever to try making a "barn door" tracking mount. Used mainly for long-exposure wide-field astrophotography, the barn door mount, invented in 1975, is basically two pieces of wood with a hinge. The bottom board mounts on a tripod and is pointed toward the North Star...
multiplication factor in the logarithmic domain), to account for the higher harmonics of the 1-Hz electronic cross-talk noise39and potential contamination with lander-related modes. These data errors work as an inverse weight in the inversion procedure, meaning a higher error results in a lower ...
Using only surface GCPs shows an inverse behavior of the reconstruction error between the corrected and uncorrected DEMs when compared to the previous approach of using all GCPs: with the refraction correction applied, the error is now positive, meaning the correction reconstructs the inundated areas...
(The meaning and usage of precision in the field of information retrieval differs from the definition of precision within other branches of science and statistics). In our context this is the number of measurements that belong to the BAS(n,m) data set, divided by the total number of ...
for the smallerDBEColidataset. We also observed that CN benefits slightly less than FNN from an increasing number of negatives in the training set. The performance of CN and FNN did increase between a ratio of 1:5 and 1:10 only in some cases, meaning that the benefit reaches a plateau....
shallow-backup lets you easily create lightweight backups of installed packages, applications, fonts and dotfiles, and automatically push them to a remote Git repository. This backup tool is git-integrated, meaning that you can easily store your backups remotely (on GitHub, for example.) Dotfil...
It is observed that the 3DPLD model results in less variability of FS values, meaning more stable results. This is mainly due to the smoothing effect of the 3DPLS model, i.e., spatial averaging that occurs over the ellipsoidal failure surface. Figure 11 shows the probability of failure,...