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Applying a function to every row of a table using dplyr?
...%
group_by(1:nrow(iris)) %>%
do(do_fn) %>%
rbind_all()
Testing the performance,
library(plyr) # plyr_1.8.4.9000
library(dplyr) # dplyr_0.8.0.9000
library(purrr) # purrr_0.2.99.9000
library(microbenchmark)
d1_count <- 1000
d2_count <- 10
d1 <- data.frame(a=runif...
How to Get the Title of a HTML Page Displayed in UIWebView?
... we just added the length of the string
Now keep in mind this code is not tested.. if there are any problems it might be a spelling error, or that I didn't/did add a pointer when i wasn't supposed to.
If the title is a little weird and not completely right, try messing around with the NSMakeRange-...
delete_all vs destroy_all?
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@Magne Thanks! It should be working. The tests run on Ruby 2.4.1 and Rails 5.1.1. So far I've only used it privately and not in major production apps, hence the major version "0", but I never noticed any issues. It's also fairly simple, so it should be fine.
...
What's the difference between HEAD, working tree and index, in Git?
...nt after each step, but save the commit until I've gotten back to working, tested code.
Notes:
the workspace is the directory tree of (source) files that you see and edit.
The index is a single, large, binary file in <baseOfRepo>/.git/index, which lists all files in the current branch...
Vim multiline editing like in sublimetext?
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After having tested most of them hlissner/vim-multiedit seems the best AFAIAC
– Alexandre Bourlier
Jun 15 '16 at 16:37
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Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
...lags as described in Google API docs (that's what happened when I did some testing)
Additionally the Android Developer API Guidelines suggest:
ACTION_OPEN_DOCUMENT is not intended to be a replacement for ACTION_GET_CONTENT. The one you should use depends on the needs of
your app:
Use ACTION_GET_CON...
Exact difference between CharSequence and String in java [duplicate]
...e equals, == and they are both a String and a CharSequence.
I suggest you test this code, showing in action what I just wrote:
public static void main(String[] args) {
CharSequence obj = "hello";
String str = "hello";
System.out.println("Type of obj: " + obj.getClass().getSimpleName())...
How to open a specific port such as 9090 in Google Compute Engine
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What is the aftermath test @modulitos? Is it telnet :instance_ip :port or nmap -p :port :instance_ip?
– Nam G VU
Mar 20 '19 at 4:44
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C++ multiline string literal
...er 2012 CTP [microsoft.com/en-us/download/details.aspx?id=35515] for the latest bleeding edge.
– emsr
Jan 31 '13 at 1:17
5
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Fitting empirical distribution to theoretical ones with Scipy (Python)?
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There are 82 implemented distribution functions in SciPy 0.12.0. You can test how some of them fit to your data using their fit() method. Check the code below for more details:
import matplotlib.pyplot as plt
import scipy
import scipy.stats
size = 30000
x = scipy.arange(size)
y = scipy.int_(sci...