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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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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]...
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...
Getting the thread ID from a thread
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Wai Ha Lee
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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...
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
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When maven says “resolution will not be reattempted until the update interval of MyRepo has elapsed”
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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 ...
How to print a int64_t type in C
C99 standard has integer types with bytes size like int64_t. I am using the following code:
6 Answers
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