大约有 3,000 项符合查询结果（耗时：0.0090秒） [XML]
Standard deviation of a list
...of numpy.std is not correct. Given these values: 20,31,50,69,80 and put in Excel using STDEV.S(A1:A5) the result is 25,109 NOT 22,45.
– Jim Clermonts
Oct 1 '15 at 9:28
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Combine Date and Time columns using python pandas
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When I 'pd.read_excel' an Excel column that Excel identifies as "Time," pandas also reads it as "Time" automatically without any parsing argument required. Thanks for this solution. +1
– Saeed
Oct 14 '1...
What's so wrong about using GC.Collect()?
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So how about when you are using COM objects like MS Word or MS Excel from .NET? Without calling GC.Collect after releasing the COM objects we have found that the Word or Excel application instances still exist.
In fact the code we use is:
Utils.ReleaseCOMObject(objExcel)
' Call the...
Generate random numbers uniformly over an entire range
...values tend to correlate, and the sequence is deterministic). Knuth has an excellent (if hard-to-read) treatise on random number generators, and I recently found LFSR to be excellent and darn simple to implement, given its properties are OK for you.
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The Use of Multiple JFrames: Good or Bad Practice? [closed]
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@ryvantage "Should (Excel) be MDI?" Good question. I feel it should be offered to the user both ways (certainly not only in MDI form). For example: 1) I currently use TextPad, and by configuration at my choice, it opens separate instances, t...
Creating dataframe from a dictionary where entries have different lengths
...ile this does not directly answer the OP's question. I found this to be an excellent solution for my case when I had unequal arrays and I'd like to share:
from pandas documentation
In [31]: d = {'one' : Series([1., 2., 3.], index=['a', 'b', 'c']),
....: 'two' : Series([1., 2., 3., 4.], ind...
Unit testing for C++ code - Tools and methodology [closed]
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Check out an excellent comparison between several available suites. The author of that article later developed UnitTest++.
What I particularly like about it (apart from the fact that it handles exceptions etc. well) is that there is a ve...
Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
...ver. It works both in 32 bit as well as 64 bit servers. I have used it for Excel file manipulation and it worked fine for me in both the environments. But this driver is in BETA.
You can download this driver from Microsoft Access Database Engine 2010 Redistributable
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Why am I getting 'Assembly '*.dll' must be strong signed in order to be marked as a prerequisite.'?
I'm trying to compile my excel addin using C# 4.0, and started to get this problem when building my project in Visual Studio. It's important to tell you that I haven't had this problem before. What could cause this to happen?
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What good technology podcasts are out there?
...bout development, but Security Now from Steve Gibson and Leo Laporte is an excellent discussion of security issues. I think it's a must-listen for just about any computer user who's concerned about security, and especially for web developers who are responsible both for the security of their site a...