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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...that was True False and vice-versa. In this case, that means that we will select out the ones that are not duplicated according to the method.
– n8yoder
Feb 27 at 2:35
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How do I invoke a Java method when given the method name as a string?
...an.Dog";
Class<?> dogClass = Class.forName(dogClassName); // convert string classname to class
Object dog = dogClass.newInstance(); // invoke empty constructor
String methodName = "";
// with single parameter, return void
methodName = "setName";
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Insert picture/table in R Markdown [closed]
...explained fully here. Again, this function is intelligent in automatically selecting the correct formatting for the output selected.
```{r table}
knitr::kable(mtcars[1:5,, 1:5], caption = "A table caption")
```
If you want to make your own simple tables in R Markdown and are using R Studio, you c...
Command to escape a string in bash
I need a bash command that will convert a string to something that is escaped. Here's an example:
3 Answers
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Tar a directory, but don't store full absolute paths in the archive
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how about if you also want to select the files to backup based on a wildcard? -C /var/www/site1 *.dat doesn't work :(
– Andy Lorenz
Nov 5 '14 at 10:30
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Python dictionary from an object's fields
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Agreed. Note that you can also convert the other way (dict->class) by typing MyClass(**my_dict), assuming you have defined a constructor with parameters that mirror the class attributes. No need to access private attributes or override dict.
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Android Facebook integration with invalid key hash
...e Play Console, and get the SHA-1 hash under App signing certificate. Then convert it to Base64, for example with this tool: Hexadecimal -> base64 string decoder
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Unsupported major.minor version 52.0 [duplicate]
...s of your IDE. For example, in Eclipse go to menu Windows → Preferences, select Java, and expand it. Then select Compiler and change the compliance level to 1.7. I am sure this will work from there.
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Most efficient way to concatenate strings?
...choice though not for perf reasons. It can be clumsy syntax. Resharper can convert back and forth at will.
– usr
May 8 '18 at 16:13
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What is a 'SAM type' in Java?
...ions, a new feature in Java 8, are considered a SAM type and can be freely converted to them.
For example, with an interface like this:
public interface Callable<T> {
public T call();
}
You can declare a Callable using lambda expressions like this:
Callable<String> strCallable =...