WorksheetsIntroduction to R programming
Total questions: 10
Worksheet time: 5mins
The following statement are true about R, except...
an integrated suite of software facilities for data manipulation, calculation and graphical display
a suite of operators for calculations on arrays, in particular matrices
graphical facilities for data analysis and display only directly at the computer but not on hardcopy
runs on all platforms
The term “environment” is intended to characterize it as a fully planned and coherent system with an incremental accretion of very specific and inflexible tools, as is frequently the case with other data analysis software.
TRUE
FALSE
There is an important difference in philosophy between S (and hence R) and the other main statistical systems. In SAS and SPSS a statistical analysis is normally done as a series of steps, with intermediate results being stored in objects. Thus whereas S will give copious output from a regression or discriminant analysis, R will give minimal output and store the results in a fit object for subsequent interrogation by further R function
TRUE
FALSE
R the application is installed on your computer and uses your personal computer resources to process R programming language. RStudio integrates with R as an IDE (Integrated Developmet Environment) to provide further functionality. RStudio combines a source code editor, build automation tools and a debugger.
TRUE
FALSE
CRAN is abbreviations from...and what does CRAN mean?
Coherent R Active Network; the fundamental unit of shareable code
Cohorent R Archive Network; the public clearing house for R packages
Comprehensive R Archive Network; the public clearing house for R packages
Comprehensive R Active Network; the fundamental unit of shareable code
which one is true about R packages ? (the answer can be more than one)
the fundamental unit of shareable code
a collection of R functions, complied code and sample data
They are stored under a directory called "library" in the R environment.
By default, R installs a set of packages during installation. More packages are added later, when they are needed for some specific purpose.
which part that shows the list of R objects you created during your R session?
1
2
3
4
choose the following statement that is false about Bioconductor! (answer can be more than one)
Most Bioconductor components are not distributed as R packages
open source
provide tools for the analysis and comprehension of high-throughput genomic data.
Bioconductor release version is updated once each year
The broad goals of the Bioconductor project are....(the answer can be more than one)
To provide widespread access to a broad range of powerful statistical and graphical methods for the analysis of genomic data.
To further scientific understanding by producing high-quality documentation and reproducible research.
To train researchers on computational and statistical methods for the analysis of genomic data.
To facilitate the inclusion of biological metadata in the analysis of genomic data, e.g. literature data from PubMed, annotation data from Entrez genes.
When you use the R program it issues a prompt when it expects input commands. The default prompt is....
$
<
>
@
