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How to generate a number of most distinctive colors in R?
...ing a categorical dataset and want to use distinctive colors to represent different categories. Given a number n , how can I get n number of MOST distinctive colors in R? Thanks.
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Cannot overwrite model once compiled Mongoose
...one: req.body.phone
, _enabled:false
});
new_user.save(function(err){
if(err) console.log(err);
});
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Reading GHC Core
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A tip: If you don't care about type annotations and coercions use -ddump-simpl together with the -dsuppress-all option. The Core output should be much more readable.
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How to use random in BATCH script?
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Given the specific problem, you will very likely be using some kind of loop? Then you should indeed be using delayed expansion e.g. via SETLOCAL ENABLEDELAYEDEXPANSION and using !RANDOM! instead of %RANDOM%, like Eugene posted.
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How To Set Text In An EditText
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If you check the docs for EditText, you'll find a setText() method. It takes in a String and a TextView.BufferType. For example:
EditText editText = (EditText)findViewById(R.id.edit_text);
editText.setText("Google is your fr...
Saving vim macros
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Also, if you need to insert special characters (like escape, in my case) use CTRL-V <ESC> in insert mode to insert the correct character. A literal <ESC> doesn't work
– adam_0
Jan ...
Java: splitting a comma-separated string but ignoring commas in quotes
...blurb"
> d;junk="quux,syzygy"
In other words: split on the comma only if that comma has zero, or an even number of quotes ahead of it.
Or, a bit friendlier for the eyes:
public class Main {
public static void main(String[] args) {
String line = "foo,bar,c;qual=\"baz,blurb\",d;jun...
How to add multiple columns to a table in Postgres?
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ALTER TABLE IF EXISTS TABLEname
add ADD COLUMN IF NOT EXISTS column_name data_type [column_constraint];
detailed query where column_constraints are optional
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c# datatable to csv
...Text("test.csv", sb.ToString());
.net >= 4.0
And as Tim pointed out, if you are on .net>=4, you can make it even shorter:
StringBuilder sb = new StringBuilder();
IEnumerable<string> columnNames = dt.Columns.Cast<DataColumn>().
Select(column =...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...just the key object from PKCS#8, but without the version or algorithm identifier in front. BEGIN PRIVATE KEY is PKCS#8 and indicates that the key type is included in the key data itself. From the link:
The unencrypted PKCS#8 encoded data starts and ends with the tags:
-----BEGIN PRIVATE KEY----...