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pandas dataframe columns scaling with sklearn
...s a single feature or X.reshape(1, -1)
if it contains a single sample.
Converting your columns to numpy arrays should do the job (I prefer StandardScaler):
from sklearn.preprocessing import StandardScaler
scale = StandardScaler()
dfTest[['A','B','C']] = scale.fit_transform(dfTest[['A','B','C']...
Are nested try/except blocks in python a good programming practice?
...more complicated situations you may be right, but I think that when you're converting between exception types you often know that the details of the first exception don't matter to the outside user. That is, if __getattr__ raises an exception the bug is probably a typo in the attribute access, not a...
XmlSerializer: remove unnecessary xsi and xsd namespaces
...all the default constructor.
public MyTypeWithNamespaces(string label, int epoch) : this( )
{
this._label = label;
this._epoch = epoch;
}
// An element with a declared namespace different than the namespace
// of the enclosing type.
[XmlElement(Namespace="urn...
Get Enum from Description attribute [duplicate]
...
@ErikE Enum cannot be specified as a constraint (msdn.microsoft.com/en-us/library/56b2hk61.aspx)
– max
Jul 22 '15 at 23:36
1
...
Why does appending “” to a String save memory?
...g(x, y)) does effectively the same thing as appending "", but it makes the intent somewhat clearer.
– Joachim Sauer
Jan 27 '10 at 14:57
3
...
Why do my list item bullets overlap floating elements
...he only working remedy for this issue with Prince XML, a XHTML+CSS3 to PDF converter.
– Serge Stroobandt
Apr 4 '15 at 2:38
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show 2 more com...
Add swipe to delete UITableViewCell
... func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int {
return self.items.count;
}
func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
var cell = tableView.dequeueReusableCellWi...
Create a custom View by inflating a layout?
...see Documentation), since it is used to contain a single view, and inflate into it the view from the xml.
Code following:
public class MyView extends FrameLayout {
public MyView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initView();
...
What is stdClass in PHP?
...
True. I frequently use json_encode and json_decode to convert array to object to array, when necessary.
– pinkal vansia
Sep 5 '13 at 10:05
6
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Is PHP compiled or interpreted?
... the runtime engine.
The PHP compiler's job is to parse your PHP code and convert it into a form suitable for the runtime engine. Among its tasks:
Ignore comments
Resolve variables, function names, and so forth and create the symbol table
Construct the abstract syntax tree of your program
Write t...