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Relative frequencies / proportions with dplyr
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295
Try this:
mtcars %>%
group_by(am, gear) %>%
summarise(n = n()) %>%
mutate(freq...
Android: Why does long click also trigger a normal click?
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286
From Event Listeners:
onLongClick() - This returns a boolean to indicate whether you have ...
Can I apply the required attribute to fields in HTML5?
...e attribute specified,
and has a display size of 1 (do not have SIZE=2 or more - omit it if not needed);
and if the value
of the first option element in the
select element's list of options (if
any) is the empty string (i.e. present as value=""),
and that
option element's paren...
What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?
... / \
str unicode
'basestring' introduced in Python 2.3 can be thought of as a step in the direction of string unification as it can be used to check whether an object is an instance of str or unicode
>>> string1 = "I am a plain string"
>>> string2 = u"I am...
What is the purpose of static keyword in array parameter of function like “char s[static 10]”?
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129
The first declaration tells the compiler that someArray is at least 100 elements long. This can...
Vim Insert Mode on Mac OS X
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213
If this is as simple a question as it seems, you merely press i.
...
git push says “everything up-to-date” even though I have local changes
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27 Answers
27
Active
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Collection versus List what should you use on your interfaces?
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237
To answer the "why" part of the question as to why not List<T>, The reasons are future-p...
Port 80 is being used by SYSTEM (PID 4), what is that?
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32 Answers
32
Active
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SQL Server add auto increment primary key to existing table
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answered Feb 1 '11 at 12:15
marc_smarc_s
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