A quick overview of the S4 class system
Implementing an S4 class (in 4 slides) The S4 class system is a set of facilities provided in R for OO ... From using an object constructor function.
A (Not So) Short Introduction to S4 V0.5.1
20 août 2008 This tutorial is a guide to object programming with R (or S4). It does not require ... The most important one is called the constructor.
Implementing S4 objects in your package: Exercises
18 févr. 2011 A constructor so we can create GWASdata instances. A common practise is to define an ordinary function named like the class itself for this.
Package textgRid
21 sept. 2016 IntervalTier-class IntervalTier-constructor
Object-Oriented Programming in R: S3 S4
https://canvas.uw.edu/files/27543632/download?download_frd=1&verifier=ZJCPzuqXFNAeylXt159H1cUvBOyamBmvRIh8ywmq
objectSignals: Observer Pattern for S4
5 avr. 2022 for the constructor/initializer to explicitly create the signal. ... a default value for a field in the vein of prototype for S4 classes
memuse: Memory Estimation Utilities
20 oct. 2021 Constructor for objects of class memuse. Usage mu(size unit = "best"
A brief overview of the S4 class system
18 févr. 2011 The S4 class system is a set of facilities provided in R for OO programming. ... From using a specialized high-level constructor.
R7 > S3 + S4 and Bioconductor
S4 library(rtracklayer) loads. 129 classes. 1114 generics and. 6304 methods The class object is the constructor: object <- text(“hi”).
R7 > S3 + S4 and Bioconductor
S4 library(rtracklayer) loads. 129 classes. 1114 generics and. 6304 methods The class object is the constructor: object <- text(“hi”).
A (Not So) Short Introduction to S4 - The Comprehensive R
S4 is the 4thversion of S S is a language that has two implementation: S-plus is com- mercial R is free The main characteristic of S4 compared to S3 is the development of functions which allow to consider S as an object language1 By extension S4 stand for object oriented programming with S
R S4 Class - Tutorial And Example
Dec 13 2013 · gene lists of the corresponding row and column This class calls the GeneOverlap constructor to create objects that represent the overlapping information When there is only one gene set the matrix represents the self-comparison within the gene set and only the upper triangular matrix is used
SpatialExperiment: S4 Class for Spatially Resolved -omics Data
Title S4 Class for Spatially Resolved -omics Data Description Defines an S4 class for storing data from spatial -omics experiments The class extends SingleCellExperiment to support storage and retrieval of additional information from spot-based and molecule-based platforms including spatial coordinates images and image metadata
pscore: Standardizing Physiological Composite Risk Endpoints
An constructor function for the S4 CompositeReady class Description An constructor function for the S4 CompositeReady class Usage CompositeReady(datacovmatsigmastandardizeuse prethresholddistancesdistanceDensitywinsorizedValuesbetterrawdatagroupsthresholdshigherisbetterkrawtrans) Arguments distances
Battalion Sustainment Planning Trends at JRTC - MCoE
S4 positions in infantry battalions are coded for Infantry officers specifically because they are most familiar with the expenditures of all classes of supply required for specific tactical operations not because they are technical experts in sustainment execution During a recent defense the S4 took an overly broad
Searches related to s4 constructor filetype:pdf
this s4 = s4;} // constructor Quad // Utility Method called perim: computes perimeter // Service method called print: // obtains perimeter from perim and prints value
How to create an S4 object?
- To create an S4 object we have to use the new () function. # create an object using new () # provide the class name and value for slots s
Package 'memuse"
January 24, 2023
TitleMemory Estimation Utilities
Version4.2-3
DescriptionHow much ram do you need to store a 100,000 by 100,000 matrix? How much ram is your current R session using? How much ram do you even have? Learn the scintillating answer to these and many more such questions with the "memuse" package.LicenseBSD 2-clause License + file LICENSE
DependsR (>= 3.0.0)
Importsmethods, utils
NeedsCompilationyes
ByteCompileyes
MaintainerDrew Schmidt
URLhttps://github.com/shinra-dev/memuse
RoxygenNote7.1.2
AuthorDrew Schmidt [aut, cre],
Christian Heckendorf [ctb] (FreeBSD improvements to meminfo),Wei-Chen Chen [ctb] (Windows build fixes),
Dan Burgess [ctb] (donation of a Mac for development and testing)RepositoryCRAN
Date/Publication2023-01-24 15:40:15 UTC
Rtopics documented:
memuse-package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Accessors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Arithmetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 cachelinesize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 cachesize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 12memuse-package
Constructor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 filesize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 howbig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 howmany . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 hr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 meminfo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 memuse-class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 print-hr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 print-memuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 print-sysinfo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 procmem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 sum,memuse-method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21swapinfo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Swaps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Index25memuse-packageCore memuse Classes and MethodsDescription Originally an amusing fancy printing system, this package contains that, as well as some func- tionality for showing. As of version 2.0, the package contains some helpful utilities for accessing hardware ram information, ram usage of the current R process, as well as some other niceties.
Details
If you do a lot of benchmarking, this is the package you"ve been waiting for. Maybe. I mean, I don"t want to be too pushy about it.Author(s)
Drew Schmidt
References
Project home page:https://shinra-dev.github.io
Accessors3AccessorsAccessorsDescription
Accessor methods for slots of objects of classmemuse. Usage mu.size(x, as.is = TRUE) mu.unit(x) mu.prefix(x) mu.names(x) ## S4 method for signature?memuse? mu.size(x, as.is = TRUE) ## S4 method for signature?memuse? mu.unit(x) ## S4 method for signature?memuse? mu.prefix(x) ## S4 method for signature?memuse? mu.names(x)Arguments
xmemuse object as.islogical; should the size be "as-is", or converted to bytes first.Details
These methods are mostly just syntactic sugar for ordinary S4 slot accessing. So for example, size(x)is no different semantically from callingx@size. There are two differences, however. Thesize()method has a parameteras.iswhich controlswhether the return should be the raw value or the raw value converted to bytes first. For the latter,
you should really useas.numericinstead, which is equivalent to callingsize(x, as.is=FALSE). Value Returns a numeric value in the case ofsize(), andas.numeric(), otherwise a string is returned.4Arithmetic
See Also
memuse-classExamples
## Not run: x <- mu(1e6) size(x) as.numeric(x) mu.unit(x) mu.prefix(x) mu.names(x) ## End(Not run)ArithmeticBinary ArithmeticDescriptionBinary arithmetic operations formemuseobjects.
Usage ## S4 method for signature?memuse,memuse? e1 + e2 ## S4 method for signature?memuse,numeric? e1 + e2 ## S4 method for signature?numeric,memuse? e1 + e2 ## S4 method for signature?memuse,object_size? e1 + e2 ## S4 method for signature?object_size,memuse? e1 + e2 ## S4 method for signature?memuse,memuse? e1 - e2 ## S4 method for signature?memuse,numeric? e1 - e2 ## S4 method for signature?numeric,memuse?Arithmetic5
e1 - e2 ## S4 method for signature?memuse,missing? e1 - e2 ## S4 method for signature?memuse,object_size? e1 - e2 ## S4 method for signature?object_size,memuse? e1 - e2 ## S4 method for signature?memuse,memuse? e1 * e2 ## S4 method for signature?memuse,numeric? e1 * e2 ## S4 method for signature?numeric,memuse? e1 * e2 ## S4 method for signature?memuse,object_size? e1 * e2 ## S4 method for signature?object_size,memuse? e1 * e2 ## S4 method for signature?memuse,memuse? e1 / e2 ## S4 method for signature?memuse,numeric? e1 / e2 ## S4 method for signature?numeric,memuse? e1 / e2 ## S4 method for signature?memuse,object_size? e1 / e2 ## S4 method for signature?object_size,memuse? e1 / e2 ## S4 method for signature?memuse,memuse? e1 ^ e2 ## S4 method for signature?memuse,numeric? e1 ^ e26cachelinesize
Arguments
e1, e2 memuse ,numeric, orobject_sizeobjects.Details
Simplebinaryarithmeticformemuseobjects. Optionsincludeanycombinationofmemuse,object_size (output from theobject.size()function), andnumericobjects. ValueReturns amemuseclass object.
See Also
Constructor
memuse-classExamples
## Not run: x <- mu(200) y <- mu(100) x+y x-y x*y x/y x^2 ## End(Not run)cachelinesizeCache Sizes and LinesizeDescriptionShows the size of the cache line.
UsageSys.cachelinesize()
Details
Sys.cachelinesize()will return the cache linesize. It"s almost certainly 32 or 64 bytes. Value Returns a list, whose values are platform dependent. cachesize7See Also
meminfoExamples
## Not run: library(memuse)Sys.cachelinesize()
## End(Not run)cachesizeCache SizesDescriptionShows the sizes of the CPU caches.
UsageSys.cachesize()
Details
Sys.cachesize()will check the various levels of cache and return all available cache informationin a list. If you don"t have some kind of level-1 cache, then it will return an error. If you have some
kind of future space computer with more than 3 levels of cache, levels higher than 3 will not be displayed. Value Returns a list, whose values are platform dependent.See Also
meminfoExamples
## Not run: library(memuse)Sys.cachesize()
## End(Not run)Binary comparators formemuseobjects.
Usage ## S4 method for signature?memuse,memuse? e1 == e2 ## S4 method for signature?memuse,memuse? e1 < e2 ## S4 method for signature?memuse,memuse? e1 <= e2 ## S4 method for signature?memuse,memuse? e1 > e2 ## S4 method for signature?memuse,memuse? e1 >= e2 ## S4 method for signature?memuse,memuse? e1 != e2 ## S4 method for signature?memuse,numeric? e1 == e2 ## S4 method for signature?memuse,numeric? e1 < e2 ## S4 method for signature?memuse,numeric? e1 <= e2 ## S4 method for signature?memuse,numeric? e1 > e2 ## S4 method for signature?memuse,numeric? e1 >= e2 ## S4 method for signature?memuse,numeric? e1 != e2 ## S4 method for signature?numeric,memuse? e1 == e2Comparators9
## S4 method for signature?numeric,memuse? e1 < e2 ## S4 method for signature?numeric,memuse? e1 <= e2 ## S4 method for signature?numeric,memuse? e1 > e2 ## S4 method for signature?numeric,memuse? e1 >= e2 ## S4 method for signature?numeric,memuse? e1 != e2Arguments
e1, e2 memuse ,numeric, orobject_sizeobjects.Details
Comparisons to numeric values are done at the byte level. ValueReturns amemuseclass object.
See Also
Constructor
memuse-classExamples
## Not run: x <- mu(2000) y <- mu(3000) x < y x <= y x > y x >= y x == y x != y ## End(Not run)10ConstructorConstructormemuse ConstructorDescription
Constructor for objects of classmemuse.
Usage mu(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?ANY? mu(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature??NULL?? mu(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?numeric? mu(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?object_size? mu(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?missing? mu(size, unit = "best", prefix = "IEC", names = "short") memuse(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?ANY? memuse(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature??NULL?? memuse(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?missing? memuse(size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?numeric? memuse(size = size, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?object_size? memuse(size, unit = "best", prefix = "IEC", names = "short")Arguments
size numeric ; indicates the unit-multiple number of bytes used by the object.Converters11
unit string ; the unit of storage, such as "MiB" or "MB", depending on prefix. Case is ignored. prefix string ; the unit prefix, namely IEC or SI. Case is ignored. names string ; control for whether the unit names should be printed out or their ab- breviation should be used. Options are "long" and "short", respectively. Case is ignored.Details
For numeric objects, if the length is 1, then its value is used as the number of bytes. Otherwise, the
object"s memory usage in R is taken for the size parameter. ValueReturns amemuseclass object.
See Also
memuse-classAccessors
Converters
Examples
## Not run: ### The value passed as?size?is the number of bytes x <- memuse(100, unit="kb") x y <- memuse(100, unit="kb", prefix="SI") y ### Use the memory usage of object?size? memuse(rnorm(1e4)) ## End(Not run)ConvertersConvertersDescription Converter methods between memuse and base R objects.12Converters
Usage as.memuse(x, ...) ## S4 method for signature?numeric? as.memuse(x, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?object_size? as.memuse(x, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?character? as.memuse(x, unit = "best", prefix = "IEC", names = "short") ## S4 method for signature?memuse? as.character(x, ...) ## S4 method for signature?memuse? as.numeric(x, ...)Arguments
xNumeric value, object_size data, or appropriate string (see details section for more information). ...Additional arguments. unit string ; the unit of storage, such as "MiB" or "MB", depending on prefix. Case is ignored. prefix string ; the unit prefix, namely IEC or SI. Case is ignored. names string ; control for whether the unit names should be printed out or their ab- breviation should be used. Options are "long" and "short", respectively. Case is ignored.Details
These methods convert numeric,object_size, and string (character) objects to/frommemuseob- jects. as.numeric(x)for a memuse objectxis just sugar formu.size(x, as.is=FALSE) Strings must be of the same form as the printed output of a a memuse object. For example, "100KiB" is valid, but "100 (KiB)" is not. As always, case of the unit is ignored, and so "100 kib" would
be valid as well. Value Returns a character, numeric, ormemuseobject, depending on the call.See Also
memuse-classAccessors
filesize13Examples
## Not run: as.memuse(10) ## End(Not run)filesizefilesizeDescription Returns size of a file as reported by the file system (the file is not scanned). UsageSys.filesize(filename)
Sys.dirsize(dirname)
Arguments
filename, dirnameLocation of the file/directory (as a string).
Details
source tree) is licensed under the permissive 2-Clause BSD license. ValueA memuse class object.
Examples
## Not run: library(memuse) x <- rnorm(1e5) memuse(x) ### size in ram tmp <- tempfile() saveRDS(x, file=tmp)Sys.filesize(tmp) ### size on disk
unlink(tmp) ## End(Not run)14howbighowbighowbigDescription
Determines the memory usage for a dense, in-core, numeric matrix of specified rows/columns. Usage howbig( nrow = 1, ncol = 1, representation = "dense", unit = "best", prefix = "IEC", names = "short",quotesdbs_dbs6.pdfusesText_11[PDF] s4 nextmethod
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