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Linear Regression and group by in R
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@pedram and @holastello, this no longer works, at least with R 3.6.1, broom_0.7.0, dplyr_0.8.3. d %>% group_by(state) %>% do(model=lm(response ~year, data = .)) %>% rowwise() %>% tidy(model) Error in var(if (is.vector(x) || is.factor(x)) x else as.double(x), na.r...
How can I update NodeJS and NPM to the next versions?
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This causes fatal error, at least for mac users see here
– dmr07
Oct 18 '15 at 22:26
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Difference between modes a, a+, w, w+, and r+ in built-in open function?
...the end of file - ignores any seek movements.
BTW. interesting behavior at least on my win7 / python2.7, for new file opened in a+ mode:
write('aa'); seek(0, 0); read(1); write('b') - second write is ignored
write('aa'); seek(0, 0); read(2); write('b') - second write raises IOError
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
... install HAXM
Unfortunately this step didn't work for me
Last but not least: try this workaround patch released by Intel.
http://software.intel.com/en-us/blogs/2013/04/25/workaround-patch-for-haxm-installation-error-failed-to-configure-driver-unknown
All you have to do is to download the pac...
What is the direction of stack growth in most modern systems?
...wn, I think.
System z: in a linked list, I kid you not (but still down, at least for zLinux).
ARM: selectable, but Thumb2 has compact encodings only for down (LDMIA = increment after, STMDB = decrement before).
6502: down (but only 256 bytes).
RCA 1802A: any way you want, subject to SCRT implementat...
What is the standard Python docstring format? [closed]
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yeah, but at least it gives a hint of what sort of duck is expected, and majority of devs aren't on Python 3 yet
– Anentropic
Jul 26 '12 at 11:47
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What is the shortest function for reading a cookie by name in JavaScript?
... jsperf.com/pre-increment-vs-post-increment I was right, ++i is faster, at least if you get the value before and after. And that's what you do in a for loop.
– xavierm02
May 8 '11 at 21:26
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How to determine the content size of a UIWebView?
...cumentation, the parameter passed to [webView sizeThatFits: ...] should at least have the desired width. With his solution, the desired width is set to the webView's frame before calling sizeThatFits with a CGSizeZero parameter. So I maintain this solution is working on iOS 6 by "chance".
I imagine...
static linking only some libraries
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At least, this solution works to static link against libgomp!
– Jérôme
Jun 24 '14 at 9:35
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How to smooth a curve in the right way?
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I prefer a Savitzky-Golay filter. It uses least squares to regress a small window of your data onto a polynomial, then uses the polynomial to estimate the point in the center of the window. Finally the window is shifted forward by one data point and the process repea...