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Questions tagged [delta]

A Delta is a file that represents the changes between two or more revisions of structured or semi-structured data. Use delta-lake tag for questions about Delta Lake file format.

References

312 questions
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Delta indexes not working on servers when using Thinking Sphinx

I'm using delta indexing for my Thinking Sphinx indexes in my Rails project. In my machine (Mac OS X) it's working fine. I change a record and it immediately finds it. On the servers (Debian) it doesn't. I did run a sql query for delta = true and…
Pablo Fernandez
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bsdiff without compression is generating big delta patch files

I am currently developing an OTA/FOTA update system which must run in an embedded device with a ARM CORTEX M0+. My main problem is the FLASH lack of space and the network low network bandwidth I have, so the delta patches should be the smaller the…
Fulgor3
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pandas: Data difference (delta) between 2 data frames

I have 2 non-indexed data frames, with the exact same data structure (same columns), for the sake of simplicity here's an example: df1 0 1 2 3 4 JoeK Joe Kavanagh 120 joe.kavanagh@nomail.com BarryD Barry Dempsy …
Riki Lyng
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How I get the new Field Value from a TClientDataset in Delphi?

hi i have a problem with TClientDataset in Delphi. I want to get a Dataset with the changed Data. here is my code: procedure TForm2.btnUpdateClick(Sender: TObject); var I: Integer; counter : Integer; //for testing value : String; begin …
Tarasov
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moving a sprite causes jerky movement

I've got some jerky movement of my sprite. Basically, when the user touches a point on the screen, the sprite should move to that point. This is working mostly fine... it's even taking into account a delta - because frame rate may not be…
mac_55
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delta- lognormal GLM

I am trying to model a distribution using a delta-lognormal GLM. My data are abundance (continuous variable with approximately 10% zeros ) and a series of explanatory variables, but so far I am trying with one at a time. head(data.file) DENSITY …
user3607991
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Delta-time lag compensation messing up my Spinner for my game

Inside my game, I have a spinner, just like the ones in Mario. When the game doesn't lag, the spinner functions perfectly and rotates in a full 360 degrees circle at constant speed. However, when it lags (which happens a lot for Android version),…
Kenneth Wang
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Particle effect not rendering

I'm trying to use a particle effect, but I encounter an error associated with this task before my application starts. This is how I've set it up: private ParticleEffect particle; @Override public void create(){... ParticleEffect…
jdubbing
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Versioning or create Delta of File

I want to compare or get delta of two files that means if a file or directory has just been renamed or moved or changed into another folder will handle these operations like a deletion and subsequent file (re)creation, resulting in re-transmitting…
Harshit Rathi
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Java library to calculate the relative difference between two Strings?

I'm looking for a way to do programmatically detect the delta ratio between two strings. I can use string length, but this doesn't give much useful information for like-sized but different inputs. There is a java diff tool on google code Java Diff…
Quad64Bit
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Nanosecond Accuracy For Timing In C++

Is there a way in C++ to get nanosecond accuracy? Something equivalent to the nanosecond timer in Java (System.nanotime).
Monet R. Adams
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Can't git clone from github. remote: fatal: failed to apply delta

Since a few days, one of my GitHub repository seems to be corrupted. When trying to clone the repository with the following command line : git clone git@github.com:MyAccount/MyRepository.git I get the following output : Cloning into…
Drico
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Is there a more accurate LWJGL timer

After looking at timer showed on the LWJGL wiki milliseconds weren't fast enough. It kept an inconsistent speed of the player. I can't find anything on how to produce a more accurate timer, like 3.2 milliseconds instead of 3 milliseconds. I know…
free_ice_cream
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Limits of Ada Fixed Point Type

Reading this http://en.wikibooks.org/wiki/Ada_Programming/Types/delta has got me wondering what the limit value of delta is. For example delta 127 range 0..1_000_000; needs one byte to hold the delta value. But delta 0.0000000001 range…
user485498
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Subtracting a JPEG image from itself results in a non empty image

Trying to subtract a JPEG image from itself results in a non empty image, i.e. the delta image is almost white, but something from the original image is still visible. I do not know if this is something intrinsic to the JPEG format, or if it…
Pietro
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