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Cluster analysis in R: determine the optimal number of clusters
...ps sum of squares")
We might conclude that 4 clusters would be indicated by this method:
Two. You can do partitioning around medoids to estimate the number of clusters using the pamk function in the fpc package.
library(fpc)
pamk.best <- pamk(d)
cat("number of clusters estimated by optimum ...
How do you generate dynamic (parameterized) unit tests in python?
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As the answer given by @codeape states, nose handles this. However, nose does not seem to handle Unicode; therefore for me this is a preferable solution. +1
– Keith Pinson
Aug 13 '11 at 20:42
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How would you make two s overlap?
... is there any way to make content just avoid the space used by the logo?
– Javier
Nov 6 '08 at 22:22
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Where is shared_ptr?
...wnloaded boosts and all but still it doesn't show up! Can someone help me by telling exactly where to find it?
4 Answers
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What do the &,
...ote the YAML spec here:
Repeated nodes (objects) are first identified by an anchor (marked with the ampersand - “&”), and are then aliased (referenced with an asterisk - “*”) thereafter.
So parts of your example
development: &default
adapter: postgresql
database: dev_deve...
How to reload/refresh an element(image) in jQuery
...you wrote in your question). You can force the browser to reload the image by passing an extra variable like so:
d = new Date();
$("#myimg").attr("src", "/myimg.jpg?"+d.getTime());
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angular ng-repeat in reverse
How can i get a reversed array in angular?
i'm trying to use orderBy filter, but it needs a predicate(e.g. 'name') to sort:
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Select DISTINCT individual columns in django?
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User order by with that field, and then do distinct.
ProductOrder.objects.order_by('category').values_list('category', flat=True).distinct()
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binning data in python with scipy/numpy
...form operations of this type:
import numpy_indexed as npi
print(npi.group_by(np.digitize(data, bins)).mean(data))
This is essentially the same solution as the one I posted earlier; but now wrapped in a nice interface, with tests and all :)
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Multiline syntax for piping a heredoc; is this portable?
...ine_list
| /* empty */
So a pipe symbol can be followed by an end-of-line and still be considered part of a pipeline.
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