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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...understood way to evaluate
an array in boolean context: it could mean True if any element is
True, or it could mean True if all elements are True, or True if the array has non-zero length, just to name three possibilities.
Since different users might have different needs and different assumptions, ...
How to write to an existing excel file without overwriting data (using pandas)?
...s writer.sheets to access the sheet.
## If you leave it empty it will not know that sheet Main is already there
## and will create a new sheet.
writer.sheets = dict((ws.title, ws) for ws in book.worksheets)
data_filtered.to_excel(writer, "Main", cols=['Diff1', 'Diff2'])
writer.save()
...
How to install a plugin in Jenkins manually
...I do not recommend it and I am down-voting for this reason. Please let me know if I am mistaken and I will undo my down-vote.
– Farrukh Najmi
Feb 17 '17 at 20:21
9
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What are the differences between a multidimensional array and an array of arrays in C#?
What are the differences between multidimensional arrays double[,] and array-of-arrays double[][] in C#?
9 Answers
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Is it possible in SASS to inherit from a class in another file?
...
To my knowledge, you have to use @import of the file containing the classes you want to use into your SASS file in order to utilize them in that file. However, I am not a SASS/SCSS expert, so someone may know of another way to remot...
How do I dump an object's fields to the console?
...l, but it can be really useful when debugging. Ruby will fall back to to_s if it can't find an inspect` method.
– the Tin Man
Nov 27 '10 at 21:45
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Remove Identity from a column in a table
...'MyTable2', 'MyIndex2', etc.
Remove the IDENTITY specification.
You should now have two "identical"-ish tables, one full, the other empty with no IDENTITY.
Run ALTER TABLE [Original] SWITCH TO [Original2]
Now your original table will be empty and the new one will have the data. You have switched th...
How do I call a dynamically-named method in Javascript?
... I googled it and found that global objects are part of the window object. Now it makes sense! Thank you. FYI I found a good page about it here devlicio.us/blogs/sergio_pereira/archive/2009/02/09/…
– Chris B
Jun 9 '09 at 12:45
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How do you clear the SQL Server transaction log?
...ame size again, not very much is accomplished by shrinking it temporarily. Now, depending on the recovery goals of your database, these are the actions you should take.
First, take a full backup
Never make any changes to your database without ensuring you can restore it should something go wrong.
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hidden symbol ... is referenced by DSO 剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...因是符号(函数)未导出导致的，添加导出申明即可解决：__attribute__ ((visibility("default")) DSO 是动态共享对象，Linux报“hidden symbol ... is referenced by DSO”错误的原因是符号(函数)未导出导致的，添加导出申明即可解决：
__attribute__ (...