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Replace all 0 values to NA
I have a dataframe with some numeric columns. Some row has a 0 value which should be considered as null in statistical analysis. What is the fastest way to replace all the 0 value to NULL in R?
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File Upload ASP.NET MVC 3.0
...face: this question is about ASP.NET MVC 3.0 which was released in 2011 , it is not about ASP.NET Core 3.0 which was released in 2019)
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Formatting Phone Numbers in PHP
...convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database .
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Convert HttpPostedFileBase to byte[]
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model.File.InputStream.CopyTo(target);
byte[] data = target.ToArray();
It's easy enough to write the equivalent of CopyTo in .NET 3.5 if you want. The important part is that you read from HttpPostedFileBase.InputStream.
For efficient purposes you could check whether the stream returned is alrea...
Removing pip's cache?
...dding the --no-cache-dir option.
If using pip older than pip 6.0, upgrade it with pip install -U pip.
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How can I save application settings in a Windows Forms application?
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If you work with Visual Studio then it is pretty easy to get persistable settings. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use t...
Best way to convert IList or IEnumerable to Array
I have a HQL query that can generate either an IList of results, or an IEnumerable of results.
4 Answers
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Multiple inheritance for an anonymous class
...anonymous class implement two (or more) interfaces? Alternatively, how can it both extend a class and implement an interface?
For example, I want to create an object of anonymous class that extends two interfaces:
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nginx error connect to php5-fpm.sock failed (13: Permission denied)
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I had a similar error after php update. PHP fixed a security bug where o had rw permission to the socket file.
Open /etc/php5/fpm/pool.d/www.conf or /etc/php/7.0/fpm/pool.d/www.conf, depending on your version.
Uncomment all permission lines, like:
listen.owner = www-data
listen...
how to check the jdk version used to compile a .class file [duplicate]
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edited Oct 18 '18 at 14:56
phlogratos
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