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Set value for particular cell in pandas DataFrame using index
...d method is .iat/.at.
Why df.xs('C')['x']=10 does not work:
df.xs('C') by default, returns a new dataframe with a copy of the data, so
df.xs('C')['x']=10
modifies this new dataframe only.
df['x'] returns a view of the df dataframe, so
df['x']['C'] = 10
modifies df itself.
Warning: It i...
How to debug a referenced dll (having pdb)
...d "existing project" to the solution. Then add a reference to the project by clicking add project reference. You can set the breakpoints in the existing project files. This is nice because the files aren't copied over.
– user420667
Sep 7 '11 at 18:45
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Best way to get application folder path
...ication, to get the current web application root directory, generally call by web page for the current incoming request:
HttpContext.Current.Server.MapPath();
System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath;
Above code description
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jQuery .ready in a dynamically inserted iframe
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In IFrames I usually solve this problem by putting a small script to the very end of the block:
<body>
The content of your IFrame
<script type="text/javascript">
//<![CDATA[
fireOnReadyEvent();
parent.IFrameLoaded();
//]]>
</script>
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How to concatenate stdin and a string?
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echo input | while read line; do echo $line string; done
Another can be by substituting "$" (end of line character) with "string" in a sed command:
echo input | sed "s/$/ string/g"
Why i prefer the former? Because it concatenates a string to stdin instantly, for example with the following comm...
Possible to perform cross-database queries with PostgreSQL?
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Yes, you can by using DBlink (postgresql only) and DBI-Link (allows foreign cross database queriers) and TDS_LInk which allows queries to be run against MS SQL server.
I have used DB-Link and TDS-link before with great success.
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Check if a Windows service exists and delete in PowerShell
...ng in Windows PowerShell 3.0, the cmdlet Get-WmiObject has been superseded by Get-CimInstance. So nowadays you can do this: Stop-Service 'servicename'; Get-CimInstance -ClassName Win32_Service -Filter "Name='servicename'" | Remove-CimInstance
– Rosberg Linhares
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What should a Multipart HTTP request with multiple files look like? [duplicate]
...217011fe0f--
Note that every line (including the last one) is terminated by a \r\n sequence.
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Open a new tab in gnome-terminal using command line [closed]
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I don't have gnome-terminal installed but you should be able to do this by using a DBUS call on the command-line using dbus-send.
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Pass array to mvc Action via AJAX
...to accommodate modern scripting languages and frameworks such as PHP and Ruby on Rails. You can disable this functionality globally by setting jQuery.ajaxSettings.traditional = true;
– Alexey Shevelyov
Nov 4 '15 at 20:48
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