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Read an Excel file directly from a R script
...heet = 2)
# If NAs are represented by something other than blank cells,
# set the na argument
read_excel("my-spreadsheet.xls", na = "NA")
Note that while the description says 'no external dependencies', it does require the Rcpp package, which in turn requires Rtools (for Windows) or Xcode (for OS...
Why would I make() or new()?
...argument, not a pointer to it. And the allocated value is initialized (not set to zero value like in new). The reason is that slice, map and chan are data structures. They need to be initialized, otherwise they won't be usable. This is the reason new() and make() need to be different.
The following...
For each row in an R dataframe
I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file.
...
iReport not starting using JRE 8
...understandable: this does not change your (or your company's) default Java settings, that is why i recommend it. This changes iReport's behaviour: iReport will search for the jdk you told it to search for instead of using default Java settings. No matter you will upgrade your Java in the future, iRe...
iPhone app in landscape mode, 2008 systems
..., although doing so this is not straightforward.
Try with this recipe:
set your orientation to UISupportedInterfaceOrientations in the Info.plist file
in your window define a 480x320 "base view controller". Every other view will be added as a subview to its view.
in all view controllers set up t...
How to ignore the first line of data when processing CSV data?
I am asking Python to print the minimum number from a column of CSV data, but the top row is the column number, and I don't want Python to take the top row into account. How can I make sure Python ignores the first line?
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How can I read a whole file into a string variable
... editor after snippets, if snippets enabled
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How to Set Focus on Input Field using JQuery
...
Try this, to set the focus to the first input field:
$(this).parent().siblings('div.bottom').find("input.post").focus();
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How to make a background 20% transparent on Android
...t code :-
https://github.com/duggu-hcd/TransparentColorCode
textviewHeader.setTextColor(Color.parseColor(ColorTransparentUtils.transparentColor(R.color.border_color,10)));
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JavaScript inheritance: Object.create vs new
...uted with the new keyword. This usually is not intended - you only want to set up the prototype chain. In some cases it even could cause serious issues because you actually instantiate an object, whose private-scoped variables are shared by all MyClass instances as they inherit the same privileged m...