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Get the last non-empty cell in a column in Google Sheets
...an use INDEX and MATCH functions like this:
=DAYS360(A2; INDEX(A:A; MATCH(99^99;A:A; 1)))
I think this is a little bit faster and easier.
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
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499
NOTE: All algorithms below are in C, but should be portable to your language of choice (just do...
pandas: filter rows of DataFrame with operator chaining
... A B C D
a 1 4 9 1
b 4 5 0 2
c 5 5 1 0
d 1 3 9 6
In [99]: df[(df.A == 1) & (df.D == 6)]
Out[99]:
A B C D
d 1 3 9 6
If you want to chain methods, you can add your own mask method and use that one.
In [90]: def mask(df, key, value):
....: return df[df[key]...
Getting the thread ID from a thread
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Wai Ha Lee
7,3991414 gold badges5050 silver badges7474 bronze badges
answered Nov 5 '09 at 9:07
BlindyBlindy
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The $.param( ) inverse function in JavaScript / jQuery
...:'one',bb:'two'},[5,6]]}), // 6
'a[]=hi&a[]=2&a[3][]=7&a[3][]=99&a[]=13',// 7
'a[x]=hi&a[]=2&a[3][]=7&a[3][]=99&a[]=13'// 8
].map(function(v){return JSON.stringify(getargs(v));}).join('\n')
results in
{"a":2} // 1
{"x":{"y":[{"z...
Regular expression to match numbers with or without commas and decimals in text
...d here: http://rextester.com/YPG96786
This will allow things like:
100,000
999.999
90.0009
1,000,023.999
0.111
.111
0
It will block things like:
1,1,1.111
000,001.111
999.
0.
111.110000
1.1.1.111
9.909,888
There are several ways to make this regex simpler and shorter, but understand that changing ...
printf format specifiers for uint32_t and size_t
...ng)k is always correct. size_t is trickier, which is why %zu was added in C99. If you can't use that, then treat it just like k (long is the biggest type in C89, size_t is very unlikely to be larger).
– u0b34a0f6ae
Nov 8 '11 at 21:32
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Where do I find the definition of size_t?
...rrors,2 particularly as 64-bit architectures become more prevalent.
From C99 7.17.1/2
The following types and macros are defined in the standard header stddef.h
<snip>
size_t
which is the unsigned integer type of the result of the sizeof operator
...
When maven says “resolution will not be reattempted until the update interval of MyRepo has elapsed”
...
Peter Hall
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answered May 25 '11 at 15:56
Christian AchilliCh...
#define macro for debug printing in C?
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If you use a C99 or later compiler
#define debug_print(fmt, ...) \
do { if (DEBUG) fprintf(stderr, fmt, __VA_ARGS__); } while (0)
It assumes you are using C99 (the variable argument list notation is not supported in earlier ...