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C* testbed (Photo credit: Wikipedia)[/caption]
I begun a serie of post dedicated to fly-by-wire explanation. I focus on C* command law as it is the most documented one. All posts from this serie will be available under the C* tag on this blog …
Category: aviation Tagged: C star Fly-by-wire
Read MoreI want to focus on notes changes. this is what I want to analyze some music sheet to count changes.
The first article I found is [paiement2007][1. Paiement, J. F., Grandvalet, Y., Bengio, S., & Eck, D. (2007). A generative model for rhythms. NIPS’2007 Music …
Category: maths Tagged: Andrei Markov Arts Finite-state machine Markov chain Music Sheet music music maths
Read MoreThis morning, I found the default behavior of the mclapply() function not quite different from the one of the lapply(). After quick investigation, I found is was due to an option not correctly set: the number of core to use.
> getOption("cores")
NULL
I must then overwrite the default mc …
Category: programming Tagged: R programming useless
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Doubly-linked list (Photo credit: Wikipedia)[/caption]
This a retranscription of a post on stackoverflow.
Category: programming Tagged: R Stack Overflow programming
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Group by (Photo credit: Wikipedia)[/caption]
Category: how to Tagged: Aggregate Group by R SQL programming
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Evaluation of occupation type over a grid (Photo credit: Wikipedia)
For some application, it is usefull to evaluate some physical value over a grid. For each dimension of the grid, the order of magnitude to use is not obvious.Watch movie online The Transporter Refueled (2015)
the function …
Category: tools Tagged: Programming R Regular grid how to programming
Read MoreCategory: R Tagged: how to programming R useless
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read.on.table (Photo credit: Wikipedia)[/caption]
Category: R Tagged: ASCII Escape sequence Quotation mark R
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Tool for language (Photo credit: Wikipedia)
I found a study from IEEE on popularity of programming languages. I note:
Category: programming Tagged: Languages Programming Programming language Study programming reflections
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binary conversion (Photo credit: Wikipedia)
I want to retrieve the binary representation (as a string of 0 and 1) of an IPv4 address ( human readable string representation) using only R functions.
The following steps and functions can be used:
| step | tool |
|---|---|
| separate each octet | strsplit(x, split=”[.]”) |
| convert integer to … |
Category: how to Tagged: IP address IPv4 how to programming R
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