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Detect enter press in JTextField
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Agreed. More elegant solution than mine, in the general case.
– Kos
Dec 12 '10 at 21:28
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Cluster analysis in R: determine the optimal number of clusters
...net/advstats/cluster.html & http://www.mattpeeples.net/kmeans.html for more. The location of the elbow in the resulting plot suggests a suitable number of clusters for the kmeans:
mydata <- d
wss <- (nrow(mydata)-1)*sum(apply(mydata,2,var))
for (i in 2:15) wss[i] <- sum(kmeans(mydata...
Android Studio: Where is the Compiler Error Output Window?
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Xcode 6 Bug: Unknown class in Interface Builder file
...usually is to resolve a different issue).
Here is an image to make things more clear:
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What columns generally make good indexes?
...ts, also sub topic page starts. Some clarification in Index page helps but more detailed index might confuse you or scare you. Indexes are also having memory.
Index selection should be wise. Keep in mind not all columns would require index.
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Type definition in object literal in TypeScript
...ttern as Alternative)
After many years of using const and benefiting from more functional code, I would recommend against using the below in most cases. (When building objects, forcing the type system into a specific type instead of letting it infer types is often an indication that something is wr...
What is the difference between varchar and nvarchar?
... there is really no reason to waste time mucking around with code pages anymore.
All modern operating systems and development platforms use Unicode internally. By using nvarchar rather than varchar, you can avoid doing encoding conversions every time you read from or write to the database. Conversi...
How to bind to a PasswordBox in MVVM
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How do you split a list into evenly sized chunks?
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What is better, adjacency lists or adjacency matrices for graph problems in C++?
...ximum number of edges), we can find the "breakpoint" where a list takes up more memory than a matrix:
8e > n2/8 when d > 1/64
So with these numbers (still 32-bit specific) the breakpoint lands at 1/64.
If the density (e/n2) is bigger than 1/64, then a matrix is preferable if you want to...