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What are the differences between Pandas and NumPy+SciPy in Python? [closed]
...el-paired data (in 1d aka dicts and 2d aka tables). Data alignment, join, etc all become possible due to this, but for people who don't grok that underlying difference it's not even clear what those mean (e.g., what is "data alignment" of two numpy arrays?).
– Brandyn
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Git commits are duplicated in the same branch after doing a rebase
...roceed to change (reword commit messages, reorder commits, squash commits, etc.)
Let's better understand what happened—here is an example:
You have a repository:
2a2e220 (HEAD, master) C5
ab1bda4 C4
3cb46a9 C3
85f59ab C2
4516164 C1
0e783a3 C0
You then proceed to change commits.
git rebase...
What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?
...with the documentation and agree with Charles here, given that varchar(n), etc. are the ANSI standards and this syntax is peculiar to PostgreSQL.
– BobRodes
Jun 10 at 3:00
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How to set xlim and ylim for a subplot in matplotlib [duplicate]
...ference to the axes object you can plot directly to it, change its limits, etc.
import matplotlib.pyplot as plt
ax1 = plt.subplot(131)
ax1.scatter([1, 2], [3, 4])
ax1.set_xlim([0, 5])
ax1.set_ylim([0, 5])
ax2 = plt.subplot(132)
ax2.scatter([1, 2],[3, 4])
ax2.set_xlim([0, 5])
ax2.set_ylim([0, 5])...
How do cache lines work?
... a rule of thumb, if the processor can't forecast a memory access (and prefetch it), the retrieval process can take ~90 nanoseconds, or ~250 clock cycles (from the CPU knowing the address to the CPU receiving data).
By contrast, a hit in L1 cache has a load-use latency of 3 or 4 cycles, and a store...
Difference between exit() and sys.exit() in Python
...xit, which exits without calling cleanup handlers, flushing stdio buffers, etc. (and which should normally only be used in the child process after a fork()).
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Difference between datetime and timestamp in sqlserver? [duplicate]
... type which handles dates and times, and can be client-specified on insert etc.
1 Assuming you use it properly, of course. See comments.
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How can I get the current date and time in the terminal and set a custom command in the terminal for
...uestion were about getting current date and time on Linux using Java, C++, etc., then it would be more appropriate for SO.
– Jeutnarg
Feb 24 '16 at 17:38
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How to access property of anonymous type in C#?
...an array into a list, e.g.
var nodes = (new[] { new { Checked = false, /* etc */ } }).ToList();
Then you'll be able to access it like:
nodes.Any(n => n.Checked);
Because of the way the compiler works, the following then should also work once you have created the list, because the anonymous ...
Why always ./configure; make; make install; as 3 separate steps?
...blemless flow. Distros use this metaphor to build packages (like RPM, deb, etc.).
Here you'll see that each step is actually a different state. That's why package managers have different wrappers. Below is an example of a wrapper that lets you build the whole package in one step. But remember that...