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Subset of rows containing NA (missing) values in a chosen column of a data frame
...m a CSV file. The data frame DF has columns that contain observed values and a column ( VaR2 ) that contains the date at which a measurement has been taken. If the date was not recorded, the CSV file contains the value NA , for missing data.
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How can I know if a process is running?
...e curly braces to indicate the block statement. This also goes for foreach and for statements. It boils down to coding style.
– Hallmanac
Nov 24 '15 at 1:36
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Tips for a successful AppStore submission? [closed]
In a day or two I'll be ready to submit my iPhone app to the AppStore and I'm curious whether people who have gone through this process have any tips / suggestions for a smooth submission process.
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NSUserDefaults not cleared after app uninstall on simulator
...eleted when you delete them from a physical device running iOS8.
A quick and annoying solution for now is to click, iOS Simulator -> Reset Content and Settings.
Xcode 9.2 with Simulator 10 still presents this issue. Menu option is now Hardware .. Erase All Content and Settings
I submitted a b...
SQL Server database backup restore on lower version
... the backup you have on a SQL Server 2008 R2 instance, export all the data and import it on a SQL Server 2008 database.
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Is there a builtin identity function in python?
...ng some more research, there is none, a feature was asked in issue 1673203 And from Raymond Hettinger said there won't be:
Better to let people write their own trivial pass-throughs
and think about the signature and time costs.
So a better way to do it is actually (a lambda avoids naming the...
CSV API for Java [closed]
...ill allow me to use read a CSV input file, do some simple transformations, and then write it.
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The builds tools for v120 (Platform Toolset = 'v120') cannot be found
...ngs to use toolset v110, or you install Visual Studio 2013 on this machine and use VS2013 to compile it.
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How can I beautify JavaScript code using Command Line?
...t in order to beautify JavaScript code. It needs to work on both Windows and Linux .
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rake db:schema:load vs. migrations
Very simple question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
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