kseq | A continuous sequence CRDT based on Logoot/LSEQ
kandi X-RAY | kseq Summary
kandi X-RAY | kseq Summary
CRDTs are data types on which the same set of operations yields the same state, regardless of whether the operations are duplicated or received out of order. This means that the state of multiple replicas will (eventually) converge without the need for consensus between the replicas. To achieve this, all operations of a CRDT must be:. CRDTs are related to Operational Transformation (OT), which was popularized by Apache (then Google) Wave in 2009. However, OT requires comparatively complex semantics to transform operations to ensure their commutativity.
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QUESTION
I have not found any similar question to this...
I have this python script to generate a count matrix from files containing only sequences, but it takes eternity to run but I know awk will do a faster job. i am not so good with awk but hoping someone might be able to help. the python script is as follows:
...ANSWER
Answered 2021-May-25 at 07:39So, after extensive reading and tries, i got what I wanted to achieve using the code
awk 'fname != FILENAME { fname = FILENAME; idx++ } idx == 1 {key[$0] = $0 } idx == 2 {if($1 == key[$1]){ f1[$1] += 1 }} idx == 3 {if($1 == key[$1]){ f2[$1] += 1 }} END {for(seq in key) print seq "\t" f1[seq] "\t" f2[seq] }' keyFile file1 file2
Thanks all for your input.
QUESTION
I'm still wrapping my head around Rcpp logic coming from an R context, so please be patient with me! From the following code:
...ANSWER
Answered 2020-Oct-07 at 13:18I don't understand why you try to use subset-assignment.
QUESTION
I'm reading the zlib manual, and am wondering about the gzread function:
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
This gives the number of uncompressed bytes, but does anything else come of this function? I'm skeptical this is the case (because not a pointer is passed to the function it seems, voidp buf), but does gzread also "read" the data into voidp buf?
Is there an analogue to gzread in the standard library (like gzopen ~ fopen)?
I'm reading a project called klib, and in one of the files (kseq.h, line 91), gzread is called (there it will be called __read, but I am reading another project, hickit, which calls it as gzread), and wondering if gzread modifies the buf value or not.
ANSWER
Answered 2020-Aug-31 at 15:38Yes, up to len bytes are written to buf.
QUESTION
I'm looking through this project klib, and in one of the files (kseq.h, 75-77), there is macros this function:
...ANSWER
Answered 2020-Aug-25 at 21:57Normally you'd define this as a function and let the compiler figure out the rest, but if you're implementing it as a macro you need to consider the context.
Remember macros get expanded in the source, so they need to be syntactically valid in the context they appear. Within a function call you can't use ;, so , is used instead as a substitute.
Like this function might be called:
QUESTION
The function receives the name of a file containing thousands of lines and a K value. The function must divide each line of the file in K sequences and create a dictionary in which the sequence is the key and the value is the number of times that is present in the file. The problem is that it takes a long time (75s).
...ANSWER
Answered 2019-Nov-28 at 01:33There is a trivial improvement to make: you're doing str(record.seq) in the inner loop. This operation takes O(n) time where n is the length of the string, and you're doing it O(n) times, so the time complexity of the algorithm O(n²). But the string is the same each time, so you should just build it once in the outer loop:
QUESTION
I have a package called 'S_PKG' in schema 'A'. I want to migrate it into schema B. What I did was I copied the code and executed in B schema. Then I wanted to execute the following pl sql script in which the 'S_PKG' is used in schema B.
...ANSWER
Answered 2019-Nov-11 at 09:15As far as I can tell, if you compiled the package when connected as user B and it was successful, then the only "unknown" information at that time is this:
QUESTION
My code runs correctly in the terminal when I compile it like
...ANSWER
Answered 2018-Dec-21 at 16:21It is not the compiling step that is failing but the linking step.
The -l parts of your command line string are the linking options, and list the libraries to which you want to link your program to.
The names that at listed after each of these -l have to be added using the target_link_libraries(Partition boost_system ...)
QUESTION
I'm learning Python in my free time using a book I bought on Amazon, at the end of each chapter there are a couple of exercises to use what you just learned. One of these exercises was about writing a program that, given a directory, creates a dictionary that has:
- as keys the words contained in the text files of the directory
- as values lists that contain all the files that have that particular word
this in what I came up with:
...ANSWER
Answered 2018-Jan-28 at 17:39directory is a string. You redefine file from a file in a dir to a character in a string
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