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Convert data.frame column to a vector?
...clarification or two in the comments.
A data frame is a list. When you subset a data frame using the name of a column and [, what you're getting is a sublist (or a sub data frame). If you want the actual atomic column, you could use [[, or somewhat confusingly (to me) you could do aframe[,2] which ...
How do I list all cron jobs for all users?
Is there a command or an existing script that will let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /e...
What must I know to use GNU Screen properly? [closed]
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I couldn't get used to screen until I found a way to set a 'status bar' at the bottom of the screen that shows what 'tab' or 'virtual screen' you're on and which other ones there are. Here is my setup:
[roel@roel ~]$ cat .screenrc
# Here comes the pain...
caption always "%{=b ...
Get Android Phone Model programmatically
.... Build.MODEL, on the other hand, is the user-facing value displayed under Settings->About Phone->Model number.
– Mike Ortiz
Aug 30 '12 at 19:20
1
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Can I have an IF block in DOS batch file?
...oks mighty suspicious to me. I don't know what the environment variable is set to or how you're setting it, but I very much doubt that the code you've shown will produce the result you're looking for.
The following sample code works fine for me:
@echo off
if ERRORLEVEL == 0 (
echo GP Manager...
How to convert timestamps to dates in Bash?
...script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
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Return empty cell from formula in Excel
... then modify Boofus' formula by changing SomeRange to Range("MyRange"). To set a name for your cells, select the cells, click Define Name on the Formulas tab of the ribbon, and enter "MyRange" in the Name field. (And of course you could replace MyRange with anything you want.)
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Bash script to set up a temporary SSH tunnel
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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Reset local repository branch to be just like remote repository HEAD
How do I reset my local branch to be just like the branch on the remote repository?
21 Answers
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What's the complete range for Chinese characters in Unicode?
U+4E00..U+9FFF is part of the complete set,but not all
6 Answers
6
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