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Pass a data.frame column name to a function
I'm trying to write a function to accept a data.frame ( x ) and a column from it. The function performs some calculations on x and later returns another data.frame. I'm stuck on the best-practices method to pass the column name to the function.
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Valid content-type for XML, HTML and XHTML documents
What are the correct content-types for XML, HTML and XHTML documents?
1 Answer
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Easy way to prevent Heroku idling?
... or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great).
Note: to all those saying it doesn't work: the important part in my answer is "availability monitor". Just installing the addon won't help. You also need to s...
Child with max-height: 100% overflows parent
I'm trying to understand what appears to be unexpected behaviour to me:
12 Answers
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Argparse: Way to include default values in '--help'?
...David I was having the same problem. Add the help argument in add_argument and that should work.
– Pablo Díaz Ogni
Sep 28 '16 at 13:47
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How set maximum date in datepicker dialog in android?
... setting the setMaxDate of datePicker the setMaxDate is always highlighted and selected, here is the image
– hasnain_ahmad
Jun 15 '17 at 4:41
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
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You could sort the array and then run through it and then see if the next (or previous) index is the same as the current. Assuming your sort algorithm is good, this should be less than O(n2):
const findDuplicates = (arr) => {
let sorted_ar...
Single quotes vs. double quotes in C or C++
When should I use single quotes and double quotes in C or C++ programming?
12 Answers
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CSS: Truncate table cells, but fit as much as possible
...on! Better late than never, right? After all this is an excellent question and Google is all over it. I didn't want to settle for a javascript fix because I find the slight jitter of things moving around after the page is loaded to be unacceptable.
Features:
No javascript
No fixed-layout
No weigh...
PostgreSQL delete all content
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Use the TRUNCATE TABLE command.
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