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Compute a confidence interval from sample data
I have sample data which I would like to compute a confidence interval for, assuming a normal distribution.
4 Answers
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Default implementation for Object.GetHashCode()
...e System {
public class Object {
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern int InternalGetHashCode(object obj);
public virtual int GetHashCode() {
return InternalGetHashCode(this);
}
}
}
InternalGetHashCode is mapped to...
Add missing dates to pandas dataframe
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You could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-2013')
s = pd.Series({'09-02-2013': 2,
'09-03-2013': 10,
'09-06-2013': 5,
'09-07-2013': 1})
s.index = pd.Date...
Increase number of axis ticks
I'm generating plots for some data, but the number of ticks is too small, I need more precision on the reading.
5 Answers...
Responsive iframe using Bootstrap
I am using Bootstrap.
6 Answers
6
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Database: To delete or not to delete records
I don't think I am the only person wondering about this. What do you usually practice about database behavior? Do you prefer to delete a record from the database physically? Or is it better to just flag the record with a "deleted" flag or a boolean column to denote the record is active or inactive?
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grep output to show only matching file
What is the option for grep that will allow me only to print the matching file and not the line within a file that matches the criteria?
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How can I clear the SQL Server query cache?
I've got a simple query running against SQL Server 2005
5 Answers
5
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Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?
I've just lost three days of my life tracking down a very strange bug where unordered_map::insert() destroys the variable you insert. This highly non-obvious behaviour occurs in very recent compilers only: I found that clang 3.2-3.4 and GCC 4.8 are the only compilers to demonstrate this "feature"....
Parallel.ForEach vs Task.Factory.StartNew
What is the difference between the below code snippets? Won't both be using threadpool threads?
4 Answers
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