Samsung Galaxy S6 Update - Stagefright fixed?

Today a new software update arrived (using Vodafone as provider) for the Samsung Galaxy S6 with the name G920FXXU2COH4 / G920FTEF2COH1 / G920FXXU2COH2. While a quick internet search didn’t reveal the purpose of the update, it seems that the Stagefright vulnerability finally has been fixed. I’ve tested the vulnerability to Stagefright attacks with Zimperium’s Stagefright Detector, as you can see in the following picture.

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Discovered music #1

Since it is always interesting to stumble over some (rather unknown) tunes while surfing the web, I thought it might be a nice addition to this blog to share (and archive) some discovered songs or albums. The following pieces mainly fit in the electronic genre and are well suited as a musical backing of a coding marathon. Furthermore, some albums can also be bought through bandcamp or are available on soundcloud.

Tor - Drum Therapy

  • Genre: Electronic, Downtempo
  • Favorite Track: Glass & Stone

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R - Pitfalls in converting a factor to a numeric value

Sometimes when you’ve done some data manipulation or read a new file, it might happen that a numerical attribute, like an ID, is stored as a factor. Let’s have a look at the following example: Here I simply defined a vector of numbers (e.g. ids) and converted the values to factors.

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id <- factor(seq(10000, 20000, 1))
> str(id)
 Factor w/ 10001 levels "10000","10001",..: 1 2 3 4 5 6 7 8 9 10 ...

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