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Why not use exceptions as regular flow of control?
...like the idea of writing code that does what others expect it to do, which means different styles in different languages.
– Mark E. Haase
Jul 2 '13 at 17:00
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Boolean operators && and ||
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The shorter ones are vectorized, meaning they can return a vector, like this:
((-2:2) >= 0) & ((-2:2) <= 0)
# [1] FALSE FALSE TRUE FALSE FALSE
The longer form evaluates left to right examining only the first element of each vector, so the above...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
...easy to find the parameters that characterise each group. For example, the mean of the red group is around 3, the mean of the blue group is around 7 (and we could find the exact means if we wanted).
This is, generally speaking, known as maximum likelihood estimation. Given some data, we compute the...
What does SynchronizationContext do?
...in a background thread without first synchronizing (through any of several means, such as this or the Invoke pattern) then an exception will be thrown.
What this does is save the synchronization context prior to creating the background thread, then the background thread uses the context.Post method...
Do you have to put Task.Run in a method to make it async?
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First, let's clear up some terminology: "asynchronous" (async) means that it may yield control back to the calling thread before it starts. In an async method, those "yield" points are await expressions.
This is very different than the term "asynchronous", as (mis)used by the MSDN docum...
Application Crashes With “Internal Error In The .NET Runtime”
...ownload/details.aspx?id=985 to work out what hex error codes like 80131506 mean and which header file contains them.
– Jeremy Thompson
Jul 21 '14 at 3:30
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Looking for a clear definition of what a “tokenizer”, “parser” and...
... output in another unamed domain, e.g., F(X) -> Y Pretty much this means you can only call this a "function". If you insist that the domain of X is <StreamOfCharacter,Grammar> and the domain of Y is Tree with the property that it reflects the shape of the grammar, then F(X,G) -> ...
AWS S3: how do I see how much disk space is using
... supports the --query parameter which takes a JMESPath expressions.
This means you can sum the size values given by list-objects using sum(Contents[].Size) and count like length(Contents[]).
This can be be run using the official AWS CLI as below and was introduced in Feb 2014
aws s3api list-obj...
Most simple but complete CMake example
...ks. Every time I think that I am getting closer to understand how CMake is meant to be written, it vanishes in the next example I read. All I want to know is, how should I structure my project, so that my CMake requires the least amount of maintainance in the future. For example, I don't want to upd...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...nnot add or update a child row: a foreign key constraint fails essentially means that, you are trying to add a row to your Ordrelinje table for which no matching row (OrderID) is present in Ordre table.
You must first insert the row to your Ordre table.
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