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Excel: last character/string match in a string
...gh it's replicable in older versions (yet I have not seen it before), when one has Excel O365 one can use:
=MATCH(2,1/(MID(A1,SEQUENCE(LEN(A1)),1)="Y"))
This can also be used to retrieve the last position of (overlapping) substrings:
=MATCH(2,1/(MID(A1,SEQUENCE(LEN(A1)),2)="YY"))
| Value | ...
Where can I learn how to write C code to speed up slow R functions? [closed]
...d Use the source, Luke! --- R itself has plenty of (very efficient) C code one can study, and CRAN has hundreds of packages, some from authors you trust. That provides real, tested examples to study and adapt.
But as Josh suspected, I lean more towards C++ and hence Rcpp. It also has plenty of exa...
Count the number occurrences of a character in a string
...unter provides them all in a more succinct form. If you want the count for one letter from a lot of different strings, Counter provides no benefit.
– Brenden Brown
Feb 17 '15 at 19:30
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git pull aborted with error filename too long
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I updated answer with that, to have at one place, thanks.
– Daniel Hári
Nov 23 '17 at 18:30
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List of strings to one string
... faster, didn't realize just how much faster. It makes sense though, it's done in unsafe code using pointers, so..... makes sense.
– BFree
Nov 25 '08 at 21:01
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How can I check if a View exists in a Database?
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Presumably one should put the name of the view being checked in the quotes? Otherwise this will never work :)
– Reversed Engineer
Aug 21 '17 at 12:54
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change cursor to finger pointer
...ointer pointer cursor will disappear/default to the standard pointer after one click interaction. Good post Scott, thank you.
– Nubtacular
Jun 4 '15 at 13:06
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Delete fork dependency of a GitHub repository
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On this page, "Commit was made in a fork" paragraph, it is explained that one has to go through support to switch. Therefore, it is likely that there is no way to do that by yourself (unless you destroy and recreate your repo which is explained before... if you do so be careful if you have tickets ...
Set the absolute position of a view
...;
rl.addView(iv, params);
More examples:
Places two 30x40 ImageViews (one yellow, one red) at (50,60) and (80,90), respectively:
RelativeLayout rl = (RelativeLayout) findViewById(R.id.my_relative_layout);
ImageView iv;
RelativeLayout.LayoutParams params;
iv = new ImageView(this);
iv.setBackgr...
How can I get list of values from dict?
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There should be one ‒ and preferably only one ‒ obvious way to do it.
Therefore list(dictionary.values()) is the one way.
Yet, considering Python3, what is quicker?
[*L] vs. [].extend(L) vs. list(L)
small_ds = {x: str(x+42) for x in...