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Error: could not find function … in R
...the name of your function correctly? Names are case sensitive.
Did you install the package that contains the function? install.packages("thePackage") (this only needs to be done once)
Did you attach that package to the workspace ?
require(thePackage) or library(thePackage) (this should be done ever...
Securely storing environment variables in GAE with app.yaml
...ect Settings.
If you ran the code above, your keys will show up. They will all have the value NOT SET. Click each one and set its value.
Hope this helps!
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Java “Virtual Machine” vs. Python “Interpreter” parlance?
...read of a Python "virtual machine" while in Java "virtual machine" is used all the time.
13 Answers
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Override Java System.currentTimeMillis for testing time sensitive code
... current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine?
...
How do I quickly rename a MySQL database (change schema name)?
...es. You might want to do a mysqldump to move the views, after first moving all the tables. Also note that SHOW TABLES will show tables AND views, so beware.
– tuomassalo
Nov 1 '13 at 12:38
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Sequence-zip function for c++11?
...ike the c++ stdlib.
template <typename Iterator>
void advance_all (Iterator & iterator) {
++iterator;
}
template <typename Iterator, typename ... Iterators>
void advance_all (Iterator & iterator, Iterators& ... iterators) {
++iterator;
a...
Showing the stack trace from a running Python application
... prompt for
interactive debugging."""
d={'_frame':frame} # Allow access to frame object.
d.update(frame.f_globals) # Unless shadowed by global
d.update(frame.f_locals)
i = code.InteractiveConsole(d)
message = "Signal received : entering python shell.\nTraceback:\n"...
How do you enable “Enable .NET Framework source stepping”?
..." with a greyed out "Browse to find Source").
However, once you've made all the appropriate settings, you can use the following workaround. The workaround is essentially to find the security updates that caused the dll to change, and then remove them. This has the obvious downside of having tho...
What is the difference between save and export in Docker?
... Docker for a couple of days and I already made some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them.
...
Is it possible to use Java 8 for Android development?
...
java 8
Android supports all Java 7 language features and a subset of Java 8 language features that vary by platform version.
To check which features of java 8 are supported
Use Java 8 language features
We've decided to add support for Java 8 ...