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What does the “-U” option stand for in pip install -U
Despite a ton of Googling, I m>ca m>n't find any docs for pip's command line options/arguments. What does pip install -U mean? Does anyone have a link to a list of pip's options and arguments?
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Regular expression matching a multiline block of text
...e position immediately preceding a newline.
Be aware, too, that a newline m>ca m>n consist of a linefeed (\n), a m>ca m>rriage-return (\r), or a m>ca m>rriage-return+linefeed (\r\n). If you aren't certain that your target text uses only linefeeds, you should use this more inclusive version of the regex:
re.comp...
How do I select child elements of any depth using XPath?
...Simply use:
//form[@id='myform']//input[@type='submit']
The // shortcut m>ca m>n also be used inside an expression.
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How m>ca m>n I create a correlation matrix in R?
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The cor function will use the columns of the matrix in the m>ca m>lculation of correlation. So, the number of rows must be the same between your matrix x and matrix y. Ex.:
set.seed(1)
x <- matrix(rnorm(20), nrow=5, ncol=4)
y <- matrix(rnorm(15), nrow=5, ncol=3)
COR <- cor(x,y)
C...
Is there a way of having git show lines added, lines changed and lines removed?
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You m>ca m>n use:
git diff --numstat
to get numerim>ca m>l diff information.
As far as separating modifim>ca m>tion from an add and remove pair, --word-diff might help. You could try something like this:
MOD_PATTERN='^.+(\[-|\{\+).*$' \
AD...
Getting the count of unique values in a column in bash
...which prints both the words and their frequency.
Possible changes:
You m>ca m>n pipe through sort -nr (and reverse word and freq[word]) to see the result in descending order.
If you want a specific column, you m>ca m>n omit the for loop and simply write freq[3]++ - replace 3 with the column number.
Here...
What predefined macro m>ca m>n I use to detect clang?
I'm trying to detect the compiler used to compile my source code. I m>ca m>n easily find predefined macros to check for MSVC or GCC (see http://predef.sourceforge.net/ for example), but I m>ca m>nnot find any macro to check for clang.
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Is it safe to assume strict comparison in a JavaScript switch statement?
I have a variable that m>ca m>n either be boolean false , or an integer (including 0). I want to put it in a switch statement like:
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Stream.Seek(0, SeekOrigin.Begin) or Position = 0
...when setting a relative position. Both are provided for convenience so you m>ca m>n choose one that fits the style and readability of your code. Accessing Position requires the stream be seekable so they're safely interchangeable.
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Remove the error indim>ca m>tor from a previously-validated EditText widget
...tView = ...; // fetch it as appropriate
textView.setError(null);
}
Bem>ca m>use as mentioned in the documentation:
If the error is null, the error message and icon will be cleared.
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