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How to convert a table to a data frame
...rs, another way I've used is data.frame(rbind(mytable)). Using the example from @X.X:
> freq_t = table(cyl = mtcars$cyl, gear = mtcars$gear)
> freq_t
gear
cyl 3 4 5
4 1 8 2
6 2 4 1
8 12 0 2
> data.frame(rbind(freq_t))
X3 X4 X5
4 1 8 2
6 2 4 1
8 12 0 2
If t...
What is the fastest way to compare two sets in Java?
...a boolean, not another Set. The elements in secondSet are actually removed from firstSet and true is returned if a change has been made.
– Richard Corfield
Oct 21 '12 at 20:30
4
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Add a common Legend for combined ggplots
...
You may also use ggarrange from ggpubr package and set "common.legend = TRUE":
library(ggpubr)
dsamp <- diamonds[sample(nrow(diamonds), 1000), ]
p1 <- qplot(carat, price, data = dsamp, colour = clarity)
p2 <- qplot(cut, price, data = dsamp, ...
Database sharding vs partitioning
...ted out partitioned on very few servers, using Postgres to divide the data from the get-go. I believe it was several thousand logical shards on those few physical shards. Read their awesome writeup from 2012 here: Instagram Engineering - Sharding & IDs
See here as well: http://www.quora.com/Wha...
C#: Looping through lines of multiline string
...
from MSDN for StringReader
string textReaderText = "TextReader is the abstract base " +
"class of StreamReader and StringReader, which read " +
"characters from streams and strings, respectively.\n\n" +
...
How do you create a yes/no boolean field in SQL server?
...best practice for creating a yes/no i.e. Boolean field when converting from an access database or in general?
11 Answ...
Downloading a picture via urllib and python
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@user3023715 in python3 you need to import request from urllib see here
– Yassine Sedrani
Dec 13 '18 at 11:12
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How to change a git submodule to point to a subfolder?
...ory as a submodule, you could always create a new repository that's cloned from boto and then set up a cron job to:
git fetch that repository into a directory
Use git filter-branch to update a branch where the subdirectory is at the top level.
Add that branch of the repository as the submodule....
Never seen before C++ for loop
...g a comma has the value of the last subexpression on the right. This comes from C and can be used in any expression, not only in a for loop.
– Giorgio
Aug 1 '12 at 8:04
7
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How does git merge after cherry-pick work?
...cherry-picked commits in history twice.
Solution to prevent this I quote from article which recommends for branches with duplicate(cherry-picked) commits use rebase before merge:
git merge after git cherry-pick: avoiding duplicate commits
Imagine we have the master branch and a branch b:...