大约有 16,000 项符合查询结果(耗时:0.0282秒) [XML]

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All combinations of a list of lists

...d by itertools and a reverse version (e.g. create a list, reverse() it and convert back to tuple). Best ask a new question. – Joachim Wagner Feb 26 at 11:06 ...
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Installing older version of R package

...all yesterday's version of checkpoint, by date install.dates('checkpoint', Sys.Date() - 1) # install earlier versions of checkpoint and devtools install.versions(c('checkpoint', 'devtools'), c('0.3.3', '1.6.1')) That has the advantage of not requiring Rtools to install binary packages on Windows,...
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How do I use installed packages in PyCharm?

... need to modify the path directly, either through environment variables or sys.path. Whether you use the os (ex. apt-get), or pip in a virtualenv, packages will be installed to a location already on the path. In your example, GNU Radio is installed to the system Python 2's standard site-packages l...
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How using try catch for exception handling is best practice

...s are. Usually exceptions cut some operation flow and they're handled to convert them to human-understandable errors. Thus, it seems like an exception actually is a better paradigm to handle error cases and work on them to avoid an application/service complete crash and notify the user/consumer th...
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?

How can I programmatically (i.e., not using vi ) convert DOS/Windows newlines to Unix? 23 Answers ...
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Convert a date format in PHP

I am trying to convert a date from yyyy-mm-dd to dd-mm-yyyy (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string. ...
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Convert dd-mm-yyyy string to date

i am trying to convert a string in the format dd-mm-yyyy into a date object in JavaScript using the following: 14 Answers ...
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How to convert a NumPy array to PIL image applying matplotlib colormap

...t 1.0. Apply the colormap directly to myarray. Rescale to the 0-255 range. Convert to integers, using np.uint8(). Use Image.fromarray(). And you're done: from PIL import Image from matplotlib import cm im = Image.fromarray(np.uint8(cm.gist_earth(myarray)*255)) with plt.savefig(): with im.sav...
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How to convert JSON to CSV format and store in a variable

...rowser, but unfortunately I have no clue how to read it. Is there a way to convert this data using JavaScript in CSV format and save it in JavaScript file? ...
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How to add new elements to an array?

...e.add( ContactsContract.Contacts.IN_VISIBLE_GROUP+"=1" ); If you need to convert it to a simple array... String[] simpleArray = new String[ where.size() ]; where.toArray( simpleArray ); But most things you do with an array you can do with this ArrayList, too: // iterate over the array for( Str...