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'App not Installed' Error on Android
...earing all of my cached data. Then, finally I realized all I had to do was select both signature versions when building my signed apk.
Before I only had V2 (Full APK Signature) selected, but after selecting V1 Jar Signature as well, I was able to successfully install my signed APK on my 4.4.2 devic...
What is in your Mathematica tool bag? [closed]
...pplication of Reap and Sow which mimics/extends the behavior of GatherBy:
SelectEquivalents[x_List,f_:Identity, g_:Identity, h_:(#2&)]:=
Reap[Sow[g[#],{f[#]}]&/@x, _, h][[2]];
This allows me to group lists by any criteria and transform them in the process. The way it works is that a c...
When to use single quotes, double quotes, and backticks in MySQL
...ng query will produce different results (or errors) depending on SQL mode:
SELECT "column" FROM table WHERE foo = "bar"
ANSI_QUOTES disabled
The query will select the string literal "column" where column foo is equal to string "bar"
ANSI_QUOTES enabled
The query will select the column column where ...
facebook: permanent Page Access Token?
...ken.
1. Get User Short-Lived Access Token
Go to the Graph API Explorer.
Select the application you want to get the access token for (in the "Application" drop-down menu, not the "My Apps" menu).
Click "Get Token" > "Get User Access Token".
In the pop-up, under the "Extended Permissions" tab, c...
Filling a DataSet or DataTable from a LINQ query result set
...order.Field<DateTime>("OrderDate") > new DateTime(2001, 8, 1)
select order;
// Create a table from the query.
DataTable boundTable = query.CopyToDataTable<DataRow>();
Why won't that work for you?
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Nearest neighbors in high-dimensional data?
...
First, the number of features (columns) in a data set is not a factor in selecting a distance metric for use in kNN. There are quite a few published studies directed to precisely this question, and the usual bases for comparison are:
the underlying statistical
distribution of your data;
the rel...
How would I skip optional arguments in a function call?
...llowing:
function getData($name, $limit = '50', $page = '1') {
return "Select * FROM books WHERE name = $name AND page = $page limit $limit";
}
echo getData('some name', '', '23'); // won't work as expected
The output will be:
"Select * FROM books WHERE name = some name AND page = 23 limit"
...
sqlalchemy: how to join several tables by one query?
...sn't do a join at all" - that's a little misleading. It will have sql like select x from a, b ,c which is a cross join. The filters then make it an inner join.
– Aidan Kane
Sep 12 '16 at 13:04
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Hidden Features of Visual Studio (2005-2010)?
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Make a selection with ALT pressed - selects a square of text instead of whole lines.
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answered Sep 19 ...
Binding an enum to a WinForms combo box, and then setting it
...s.DataSource = Enum.GetValues(typeof(Status));
Getting the enum from the selected item
Status status;
Enum.TryParse<Status>(cbStatus.SelectedValue.ToString(), out status);
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