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Pass a data.frame column name to a function
...(x[,column])
}
fun1(df, "B", max)
Alternatively, using [[ also works for selecting a single column at a time:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 <- function(x, column){
max(x[[column]])
}
fun1(df, "B")
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What does the “map” method do in Ruby?
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map, along with select and each is one of Ruby's workhorses in my code.
It allows you to run an operation on each of your array's objects and return them all in the same place. An example would be to increment an array of numbers by one:
[...
“Unable to find manifest signing certificate in the certificate store” - even when add new key
...t click on your project
click on properties
usually on the left-hand side, select the "Signing" tab
check off the Sign the ClickOnce manifests
Make sure you save!
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Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
...it go to
settings->preferences
new document / default directory tab
select the format as unix and close
create a new document
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How can I inspect disappearing element in a browser?
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An alternative method in Chrome:
Open devTools (F12).
Select the "Sources" tab.
While the element you want is displayed, press F8 (or Ctrl+/). This will break script execution and "freeze" the DOM exactly as it is displayed.
From this point, use Ctrl+Shift+C to select the elemen...
Set attribute without value
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Actually, I appear to be adding "value='true'" to my select option, instead of just "value". Ugh.
– RonLugge
Feb 27 '18 at 20:32
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Disable ALL CAPS menu items in Visual Studio 2013
... menus back.
First Variant: Since Package Manager Console is Powershell, select menu options TOOLS / Library Package Manager / Package Manager Console and enter and run
Set-ItemProperty -Path HKCU:\Software\Microsoft\VisualStudio\12.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
Google's "Report a Bug" or "Feedback Tool" lets you select an area of your browser window to create a screenshot that is submitted with your feedback about a bug.
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How to Use slideDown (or show) function on a table row?
...uld try wrapping the contents of the row in a <span> and having your selector be $('#detailed_edit_row span'); - a bit hackish, but I just tested it and it works. I also tried the table-row suggestion above and it didn't seem to work.
update: I've been playing around with this problem, and fr...
Sourcetree - undo unpushed commits
...click on the commit you like to reset to (not the one you like to delete!)
Select "Reset master to this commit"
Select "Soft" reset.
A soft reset will keep your local changes.
Source: https://answers.atlassian.com/questions/153791/how-should-i-remove-push-commit-from-sourcetree
Edit
About git r...