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How to add \newpage in Rmarkdown in a smart way?
... Does that have any effect when knitting to html? Does it cause any error?
– gvrocha
Oct 29 '15 at 17:55
Since ...
Python using enumerate inside list comprehension
...']
a list of lists:
[[i,j] for i in range(3) for j in 'abc']
a syntax error:
[i,j for i in range(3) for j in 'abc']
Which is inconsistent (IMHO) and confusing with dictionary comprehensions syntax:
>>> {i:j for i,j in enumerate('abcdef')}
{0: 'a', 1: 'b', 2: 'c', 3: 'd', 4: 'e', 5:...
passport.js RESTful auth
...ned to the client in JSON format. If username and password do not match an error is sent to the client in the form of a 401 HTTP error code.
Instead of forcing clients to send username and password with every request you can have a "get_access_token" function in your RESTful service that takes the u...
What is the worst gotcha in C# or .NET? [closed]
...
Besides the error of using throw ex (or throw e) instead of just throw, I have to wonder what cases there are when it's worth catching an exception only to throw it again.
– Ryan Lundy
Aug 7 '09 at ...
Https Connection Android
... Does not work for me, gives me same Not trusted server certificate error.
– Omar Rehman
Jun 8 '11 at 12:57
1
...
How to count occurrences of a column value efficiently in SQL?
... select should be on C.cnt because there is no S.cnt, otherwise you get an error: Invalid column name 'cnt'
– KM.
Oct 1 '09 at 14:00
1
...
calculating the difference in months between two dates
...d I copied the code which you wrote above, but I am receiving compile time error. Error 1 Operator '-' cannot be applied to operands of type 'NodaTime.LocalDate' and 'NodaTime.LocalDate'. I know this post from 5 years, did any thing changed from that time , which make the this code not working?
...
Android Min SDK Version vs. Target SDK Version
...he minimum API level required to use a feature, the compiler will issue an error (not just a warning) if code contains a call to any method that was defined at a later API level than minSdkVersion, even if targetSdkVersion is greater than or equal to the API level at which that method was first made...
Swapping column values in MySQL
....02 sec)
mysql> update z set c1 = c1 ^ c2, c2 = c1 ^ c2, c1 = c1 ^ c2;
ERROR 1264 (22003): Out of range value for column 'c1' at row 2
mysql> update z set c1 = c1 + c2, c2 = c1 - c2, c1 = c1 - c2;
ERROR 1264 (22003): Out of range value for column 'c1' at row 3
mysql> select * from z;
+---...
How to wait for a keypress in R?
...hod is that if you type something that is not a number, it will display an error.
print ("Press [enter] to continue")
number <- scan(n=1)
Wrapping into a function:
readkey <- function()
{
cat("[press [enter] to continue]")
number <- scan(n=1)
}
Method 3
Imagine you want to wa...