大约有 3,517 项符合查询结果(耗时:0.0222秒) [XML]

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How do I clone a range of array elements to a new array?

...ut I don't think there's a method which creates the new array and copies a range of elements. If you're using .NET 3.5 you could use LINQ: var newArray = array.Skip(3).Take(5).ToArray(); but that will be somewhat less efficient. See this answer to a similar question for options for more specifi...
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What exception classes are in the standard C++ library

...es std::domain_error <stdexcept> parameter outside the valid range std::future_error <future> violated a std::promise/std::future condition std::invalid_argument <stdexcept> invalid argument std::length_error <stdexcept> length exceeds its maxi...
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Python, Matplotlib, subplot: How to set the axis range?

How can I set the y axis range of the second subplot to e.g. [0,1000] ? The FFT plot of my data (a column in a text file) results in a (inf.?) spike so that the actual data is not visible. ...
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What is :: (double colon) in Python when subscripting sequences?

...e of 3. Since 3*0=0, it returns also the item on position 0. For instance: range(10)[::3] outputs [0, 3, 6, 9] – Ricky Robinson Sep 19 '14 at 8:56 1 ...
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Is there a numpy builtin to reject outliers from a list

...ing pandas.Series, and replacing MAD with IQR: def reject_outliers(sr, iq_range=0.5): pcnt = (1 - iq_range) / 2 qlow, median, qhigh = sr.dropna().quantile([pcnt, 0.50, 1-pcnt]) iqr = qhigh - qlow return sr[ (sr - median).abs() <= iqr] For instance, if you set iq_range=0.6, the ...
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Python: List vs Dict for look up table

... sets, running python 2.7.3 on an i7 CPU on linux: python -mtimeit -s 'd=range(10**7)' '5*10**6 in d' 10 loops, best of 3: 64.2 msec per loop python -mtimeit -s 'd=dict.fromkeys(range(10**7))' '5*10**6 in d' 10000000 loops, best of 3: 0.0759 usec per loop python -mtimeit -s 'from sets import Set...
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How to set the value to a cell in Google Sheets using Apps Script?

...what is required function doTest() { SpreadsheetApp.getActiveSheet().getRange('F2').setValue('Hello'); } share | improve this answer | follow | ...
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What is the difference between “int” and “uint” / “long” and “ulong”?

... @JacoPretorius Thats wrong. 8 bit int has a range from –128 to 127. The 9th bit represents 256. So with 8 bits you can represent all values up to 255 (9th val - 1). The range from -128 to 127 has a length of exactly 255. So there is no bit that holds the sign. All va...
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How to iterate through range of Dates in Java?

In my script I need to perform a set of actions through range of dates, given a start and end date. Please provide me guidance to achieve this using Java. ...
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Python Progress Bar

...("\b" * (toolbar_width+1)) # return to start of line, after '[' for i in xrange(toolbar_width): time.sleep(0.1) # do real work here # update the bar sys.stdout.write("-") sys.stdout.flush() sys.stdout.write("]\n") # this ends the progress bar Note: progressbar2 is a fork of progr...