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How to use a variable to specify column name in ggplot
... facet_grid? It works with facet_grid(cols = vars(!!column)) but throws an error with facet_grid(~ !!column)
– mRiddle
Oct 20 '19 at 6:57
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Using StringWriter for XML Serialization
...l or SqlDbType.NVarChar would give you the "unable to switch the encoding" error. Then, when inserting manually via T-SQL, since you switched the declared encoding to be utf-16, you were clearly inserting a VARCHAR string (not prefixed with an upper-case "N", hence an 8-bit encoding, such as UTF-8) ...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...onHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
MyCell *updat...
How to use timeit module
...7, 1000) vs. .repeat(2, 3500) vs .repeat(35, 200) should depend on how the error due to system load compares to the error due to input variability. In the extreme case if your system is always under heavy load, and you see a long thin tail on the left of execution time distribution (when you catch i...
(Mac) -bash: __git_ps1: command not found
I'm trying to change my command promt in terminal. I keep getting the error:
19 Answers
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What is the reason for a red exclamation mark next to my project in Eclipse?
...stly for built problems only. See here for more details. It is about built error decorater seen in eclipse.
An extract from that page:
Build path problems are sometimes easy to miss among other problems in
a project. The Package Explorer and Project Explorer views now show a
new decorator o...
Using {} in a case statement. Why?
... return a * x;
case 1337:
int x = GetSomeOtherValue(); //ERROR
return a * x;
}
You will get a compiler error because x is already defined in the scope.
Separating these to their own sub-scope will eliminate the need to declare x outside the switch statement.
switch (a)
...
New features in java 7
...tiple exception catching
this:
} catch (FirstException ex) {
logger.error(ex);
throw ex;
} catch (SecondException ex) {
logger.error(ex);
throw ex;
}
becomes:
} catch (FirstException | SecondException ex) {
logger.error(ex);
throw ex;
}
SafeVarargs
this:
@Suppre...
Infinite Recursion with Jackson JSON and Hibernate JPA issue
...rialized, in order to avoid the infite loop that causes your stackoverflow error.
So, Jackson takes the forward part of the reference (your Set<BodyStat> bodyStats in Trainee class), and converts it in a json-like storage format; this is the so-called marshalling process. Then, Jackson looks ...
No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClie
...ading the EF6 by nuget and try to run my project, it returns the following error:
34 Answers
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