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Subset of rows containing NA (missing) values in a chosen column of a data frame
...olumn (in the example it would be column Var2) has there an 'NA' character string (I will replace it with your second statement), then I would like to choose the entire row to be part of the new data frame.
– John
Nov 2 '11 at 14:29
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Creating a comma separated list from IList or IEnumerable
What is the cleanest way to create a comma-separated list of string values from an IList<string> or IEnumerable<string> ?
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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
... do is to cast your list down to an ArrayList. Here's an example:
List<String> list = new ArrayList<String>();
((ArrayList<String>) list).ensureCapacity(19);
Ultimately I think tsatiz is correct as once you cast to an ArrayList you're no longer coding to an interface. However, i...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
... compressed size: " + bucket[i].compressedOut.size()
+ String.format(" compression factor: %.2f", ((double)bucket[i].compressedOut.size())/bucketSize));
}
System.out.println(String.format("Data size: %.2fM",(double)size/(1014*1024))
+ String.forma...
Print string and variable contents on the same line in R
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{glue} offers much better string interpolation, see my other answer. Also, as Dainis rightfully mentions, sprintf() is not without problems.
There's also sprintf():
sprintf("Current working dir: %s", wd)
To print to the console output, use cat() ...
Making a UITableView scroll when text field is selected
... above the keyboard whenever the textfields become the first responder. No extra code needed.
– Sam Ho
Sep 23 '10 at 5:03
3
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Trim trailing spaces in Xcode
... in the proper way, I'd settle for about any not-too-intrusive hack. Those extra whitespaces are really annoying.
– Alexander Gladysh
Sep 8 '09 at 12:06
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Convert a list to a string in C#
How do I convert a list to a string in C#?
13 Answers
13
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How do I install jmeter on a Mac?
...s.
OUTDATED:
If you want to include the plugins (JMeterPlugins Standard, Extras, ExtrasLibs, WebDriver and Hadoop) use:
brew install jmeter --with-plugins
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How do you set a default value for a MySQL Datetime column?
...--------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+-------------------+-------+
| str | varchar(32) | YES | | NULL | |
| ts | timestamp | NO | | CURRENT_TIMESTAMP | |
+-------+-----------...