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Standardize data columns in R
I have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages.
15 ...
Get month name from Date
...early means the Date object already has all this internally defined (month and week day names) it is not public, so we have to type it all again. :(
– zanona
Sep 6 '11 at 18:04
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Generic List - moving an item within the list
So I have a generic list, and an oldIndex and a newIndex value.
10 Answers
10
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Abort makefile if variable not set
...ning an auxiliary function for that:
# Check that given variables are set and all have non-empty values,
# die with an error otherwise.
#
# Params:
# 1. Variable name(s) to test.
# 2. (optional) Error message to print.
check_defined = \
$(strip $(foreach 1,$1, \
$(call __check_defin...
How to set UITextField height?
... it's much easier to open .xib as source find ur IBUITextField and change <string key="NSFrame"> property
– HotJard
Mar 25 '13 at 6:14
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converting a .net Func to a .net Expression
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Ooh, it's not easy at all. Func<T> represents a generic delegate and not an expression. If there's any way you could do so (due to optimizations and other things done by the compiler, some data might be thrown away, so it might be impossible to get the original expression back), it'd be di...
How to revert a merge commit that's already pushed to remote branch?
git revert <commit_hash> alone won't work. -m must be specified, and I'm pretty confused about it.
16 Answers
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How can I detect if a browser is blocking a popup?
...thing I answered this 6 years ago - I sadly no longer recall the situation and browsers have come a long ways in 6 years.
– ajwaka
Apr 3 at 15:09
add a comment
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Using boolean values in C
...e 1
#define false 0
Explanation
Option 1 will work only if you use C99 and it's the "standard way" to do it. Choose this if possible.
Options 2, 3 and 4 will have in practice the same identical behavior. #2 and #3 don't use #defines though, which in my opinion is better.
If you are undecided, ...
Can I assume (bool)true == (int)1 for any C++ compiler?
...are redundant. In your expression:
true == 1
Integral promotion applies and the bool value will be promoted to an int and this promotion must yield 1.
Reference: 4.7 [conv.integral] / 4: If the source type is bool... true is converted to one.
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