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How to drop columns by name in a data frame
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389
You should use either indexing or the subset function. For example :
R> df <- data.frame...
How can I transform string to UTF-8 in C#?
...byte[] bytes = Encoding.Default.GetBytes(myString);
myString = Encoding.UTF8.GetString(bytes);
Another thing you may have to remember: If you are using Console.WriteLine to output some strings, then you should also write Console.OutputEncoding = System.Text.Encoding.UTF8;!!! Or all utf8 strings wi...
It is more efficient to use if-return-return or if-else-return?
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8 Answers
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Why specify @charset “UTF-8”; in your CSS file?
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It tells the browser to read the css file as UTF-8. This is handy if your CSS contains unicode characters and not only ASCII.
Using it in the meta tag is fine, but only for pages that include that meta tag.
Read about the rules for character set resolution of CSS files at...
pandas: filter rows of DataFrame with operator chaining
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398
I'm not entirely sure what you want, and your last line of code does not help either, but anyway...
Reading InputStream as UTF-8
...eader in = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"));
or since Java 7:
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), StandardCharsets.UTF_8));
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Java: Why is the Date constructor deprecated, and what do I use instead?
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edited Jul 9 '19 at 1:58
Sae1962
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answered Apr 15 '11 at 13:...
Difference between wait and sleep
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368
wait waits for a process to finish; sleep sleeps for a certain amount of seconds.
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How to change the output color of echo in Linux
... msanford made for tput, here is the "ANSI-Rainbow" for (( i = 30; i < 38; i++ )); do echo -e "\033[0;"$i"m Normal: (0;$i); \033[1;"$i"m Light: (1;$i)"; done
– everyman
Jan 28 '16 at 21:28
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How exactly does the python any() function work?
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168
If you use any(lst) you see that lst is the iterable, which is a list of some items. If it conta...