大约有 8,000 项符合查询结果（耗时：0.0130秒） [XML]
Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...of the matrix. The third column provides values for
#' the matrix.
#'
#' @param data data.frame: input data
#' @param rowtitle string: row-dimension; name of the column in data, which distinct values should be used as row names in the output matrix
#' @param coltitle string: col-dimension; name of ...
Create thumbnail image
...evel
using (MemoryStream ms = new MemoryStream())
{
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, compressionLevel);
newImage.Save(ms, getEncoderInfo("image/jpeg"), encoderParameters...
Can Powershell Run Commands in Parallel?
...ServerList.txt" | %{
# Define what each job does
$ScriptBlock = {
param($pipelinePassIn)
Test-Path "\\$pipelinePassIn\c`$\Something"
Start-Sleep 60
}
# Execute the jobs in parallel
Start-Job $ScriptBlock -ArgumentList $_
}
Get-Job
# Wait for it all to complete
While (Get-J...
is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]
...t can be extended more in general
public static <T> T coalesce(T... params)
{
for (T param : params)
if (param != null)
return param;
return null;
}
share
|
impro...
Set time to 00:00:00
... to do just this.
/**
* sets all the time related fields to ZERO!
*
* @param date
*
* @return Date with hours, minutes, seconds and ms set to ZERO!
*/
public static Date zeroTime( final Date date )
{
return DateTimeUtil.setTime( date, 0, 0, 0, 0 );
}
/**
* Set the time of the given Date...
How to assign an exec result to a sql variable?
...s back error status. If you need to pass back one value I'd use an output parameter.
sample stored procedure, with an OUTPUT parameter:
CREATE PROCEDURE YourStoredProcedure
(
@Param1 int
,@Param2 varchar(5)
,@Param3 datetime OUTPUT
)
AS
IF ISNULL(@Param1,0)>5
BEGIN
SET ...
Android- create JSON Array and JSON Object
...
You can create a a method and pass paramters to it and get the json as a response.
private JSONObject jsonResult(String Name,int id, String curriculum) throws JSONException {
JSONObject json = null;
json = new JSONObject("{\"" + "Name" + "\"...
JUnit test with dynamic number of tests
...
Take a look at Parameterized Tests in JUnit 4.
Actually I did this a few days ago. I'll try to explain ...
First build your test class normally, as you where just testing with one input file.
Decorate your class with:
@RunWith(Parameteri...
Passing an array as a function parameter in JavaScript
I'd like to call a function using an array as parameters:
10 Answers
10
...
What is the _snowman param in Ruby on Rails 3 forms for?
...
This parameter was added to forms in order to force Internet Explorer (5, 6, 7 and 8) to encode its parameters as unicode.
Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To underst...