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Passing command line arguments to R CMD BATCH
I have been using R CMD BATCH my_script.R from a terminal to execute an R script. I am now at the point where I would like to pass an argument to the command, but am having some issues getting it working. If I do R CMD BATCH my_script.R blabla then blabla becomes the output file, rather th...
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
...r anyone else who comes across this, it is due to the changes in pyparsing from 1.x to the 2.x release.
To install pydot using pip, first install the older version of pyparsing:
pip install pyparsing==1.5.7
pip install pydot==1.0.28
If you did not install pyparsing using pip, but instead used set...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
... blend it with a second color, and can also pass it right thru but convert from Hex to RGB (Hex2RGB) or RGB to Hex (RGB2Hex). All without you even knowing what color format you are using.
This runs really fast, probably the fastest, especially considering its many features. It was a long time in the...
How do I get the YouTube video ID from a URL?
I want to get the v=id from YouTube’s URL with JavaScript (no jQuery, pure JavaScript).
39 Answers
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Objective-C: Extract filename from path string
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Taken from the NSString reference, you can use :
NSString *theFileName = [[string lastPathComponent] stringByDeletingPathExtension];
The lastPathComponent call will return thefile.ext, and the stringByDeletingPathExtension will ...
How do you read from stdin?
... of the code golf challenges, but they all require the input to be taken from stdin . How do I get that in Python?
22 An...
How to get filename without extension from file path in Ruby
How can I get the filename from a file path in Ruby?
9 Answers
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Detect if stdin is a terminal or pipe?
When I execute " python " from the terminal with no arguments it brings up the Python interactive shell.
6 Answers
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Merge a Branch into Trunk
I'm facing a peculiar problem with SVN merge . I want to merge from a dev branch to trunk.
We have multiple dev branches cut off the trunk at the same time.
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Better way to check variable for null or empty string?
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Beware false negatives from the trim() function — it performs a cast-to-string before trimming, and thus will return e.g. "Array" if you pass it an empty array. That may not be an issue, depending on how you process your data, but with the code ...