大约有 3,600 项符合查询结果（耗时：0.0226秒） [XML]
Only read selected columns
...wnload
> library(RJDBC)
> path.to.jdbc.driver <- "jdbc//csvjdbc-1.0-18.jar"
> drv <- JDBC("org.relique.jdbc.csv.CsvDriver", path.to.jdbc.driver)
> conn <- dbConnect(drv, sprintf("jdbc:relique:csv:%s", getwd()))
> head(dbGetQuery(conn, "select * from mtcars"), 3)
mpg cyl...
How to convert a PIL Image into a numpy array?
...-255 bytes, but you might expect these to get converted to for example 0.0-1.0 in the numpy array. Some unit conversions from uint8 do this, but in this case, it doesn't.. so check it :)
– BjornW
Jan 21 '19 at 10:15
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How to make maven build platform independent?
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1st line of my pom.xml is: <?xml version="1.0" encoding="UTF-8"?> I found the same warning in Windows 7: [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
– Ripon Al Wasim
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Is it possible to use “/” in a filename?
...ches on ASCII 0x2F. ASCII is a big no-no since at least 20 years. (Unicode 1.0 is from 1991!)
– Evi1M4chine
Jun 5 '16 at 9:30
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How to handle checkboxes in ASP.NET MVC forms?
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This is also present in the 1.0 release. Look at the answer @andrea-balducci submitted that gives you an intelligent way to deal with this. If the checkbox is not checked, the resulting text retrieved should be 'false false' - its a good workaround to...
How can I add the new “Floating Action Button” between two widgets/layouts
...AB you wish. Assume FAB is 64dp high including shadow:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"&...
Base64 length calculation?
... Double calcBase64SizeInKBytes(String base64String) {
Double result = -1.0;
if(StringUtils.isNotEmpty(base64String)) {
Integer padding = 0;
if(base64String.endsWith("==")) {
padding = 2;
}
else {
if (base64String.endsWith("=")) padding ...
How do I declare a global variable in VBA?
...************''
' Name: Date: Created Date Author: Name
' Current Version: 1.0
' Called by:
''***********************************''
' Notes: Explain Who what when why...
' This code Example requires properties to be filled in
''***********************************''
' Global Variables
Public Globa...
What data type to use for money in Java? [closed]
...pId>
<artifactId>moneta</artifactId>
<version>1.0</version>
</dependency>
This dependency will transitively add javax.money:money-api as a dependency.
You can then use the API:
package com.example.money;
import static org.junit.Assert.assertThat;
import ...
PHP ORMs: Doctrine vs. Propel
...most used - especially for newer projects. There are of course a lot of sf 1.0 projects that still use Propel because Doctrine wasn't available for symfony until 1.1.
– phidah
Jan 14 '10 at 6:58
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