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Reverting a single file to a previous version in git [duplicate]
...ges you want and commit that.
E.g. If you want to undo the changes in the range from..to, do the following
git diff to..from > foo.diff # get a reverse diff
patch < foo.diff
git commit -a -m "Undid changes from..to".
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Avoid trailing zeroes in printf()
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I search the string (starting rightmost) for the first character in the range 1 to 9 (ASCII value 49-57) then null (set to 0) each char right of it - see below:
void stripTrailingZeros(void) {
//This finds the index of the rightmost ASCII char[1-9] in array
//All elements to the left of...
Using parameters in batch files at Windows command line
...unched from (very useful!) you can use
ECHO %~dp0
You can view the full range of these capabilities by typing CALL /? in the command prompt.
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Moving and vanishing lines of code; trouble with Eclipse's XML Editor
...oth save and format your XML.
I've tried other editors options like "Show range indicator" or "Use characters to show changes in vertical ruler" but I didn't see any difference in behavior with activating or de-activating these options.
Finally, to correct the visual display of the file when it's ...
Remap values in pandas column with a dict
...E", 6: "F", 7: "G", 8: "H" }
df = pd.DataFrame({ 'col1': np.random.choice( range(1,9), 100000 ) })
and testing with %timeit, it appears that map is approximately 10x faster than replace.
Note that your speedup with map will vary with your data. The largest speedup appears to be with large dict...
Creating an R dataframe row-by-row
...ficiently.
With some cleverness behind the scenes, you can sometimes arrange to have one foot in each world. Snapshot based file systems are a good example (which evolved from concepts such as union mounts, which also ply both sides).
If R Core wanted to do this, underlying vector storage co...
How do I represent a time only value in .NET?
...time I'm talking about is not an interval, but a single fixed point over a range of dates.
– sduplooy
Jan 10 '10 at 14:40
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Functional programming vs Object Oriented programming [closed]
...the problem domain. For example, see list comprehensions in Python or std.range in the D programming language. These are inspired by functional programming.
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Convert string[] to int[] in one line of code using LINQ
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The second solution: var a = Enumerable.Range(0, arr.Length).Where(i => int.TryParse(arr[i], out i)).ToArray(); just returns the indeces 0,1,2,... instead of the real values. What's the right solution here?
– Beetee
Jul 10 ...
What are the lesser known but useful data structures?
... Spatial indices are also useful for N-body simulations involving long-range forces like gravity.
– Justin Peel
May 25 '10 at 16:13
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