Description Details Value Constructor Fields Methods Methods See Also Examples
A connection respresents a study or a set of studies available on ImmuneSpace. It provides function to download and display the data within these studies.
The ImmuneSpaceConnection will initialize itself, and look for a
.netrc
file in "~/"
the user's home directory. The
.netrc
file should contain a machine
, login
, and
password
entry to allow access to ImmuneSpace, where machine
is
the host name like "www.immunespace.org".
It can also use global variables labkey.url.base
, and
labkey.url.path
, to access a study. labkey.url.base
should be
https://www.immunespace.org/
. labkey.url.path
should be
/Studies/studyname
, where 'studyname' is the accession number of the
study.
An instance of an ImmuneSpaceConnection for a study in
labkey.url.path
.
CreateConnection
study
A character
. The study accession number. Use an empty string ("")
to create a connection at the project level.
availableDatasets
A data.table
. The table of datasets available in the connection
object.
cache
A list
. Stores the data to avoid downloading the same tables
multiple times.
config
A list
. Stores configuration of the connection object such as
URL, path and username.
initialize()
Initialize ImmuneSpaceConnection
class.
See CreateConnection
.
print()
Print ImmuneSpaceConnection
class.
listDatasets(output = c("datasets", "expression"))
Lists the datasets available in the study or studies of the connection.
listGEMatrices(verbose = FALSE, reload = FALSE, participantIds = NULL)
Lists available gene expression matrices for the connection.
verbose
: A logical. If TRUE, whether to print the extra details
for troubleshooting.
reload
: A logical. If TRUE, retrieve the table of available gene
expression matrices whether a cached version exist or not.
participantIds
: A character vector of participant ids to filter
by. Only matrices with data from participantIds
will be returned.
If NULL
, all matrices are returned.
listGEAnalysis()
Lists available gene expression analysis for the connection.
listParticipantGroups()
Lists available participant groups on the ImmuneSpace portal.
listParticipantGEMatrices(group, verbose = FALSE)
Lists available gene expression matrices for participants in group
.
group
: A character or integer.
Call con$listParticipantGroups()
to see available participants
groups. Use group_id or group_name as input.
verbose
: A logical. If TRUE, whether to print the extra details
for troubleshooting.
listWorkspaces(reload = FALSE)
Lists available workspaces for the connection.
reload
: A logical. If TRUE, download the table whether a cached
version exist or not.
listGatingSets(reload = FALSE)
Lists available gating sets for the connection.
reload
: A logical. If TRUE, download the table whether a cached
version exist or not.
summarizeCyto()
Prints a summary of cytometry data for the connection.
summarizeGatingSet(gatingSet)
Prints a summary of a gating set. Note that this method currently works only in the ImmuneSpace RStudio session.
gatingSet
: A character. The name of the gating set to summarize.
loadGatingSet(gatingSet)
Loads a gating set via flowWorkspace::load_gs
to the
current environment. Note that this method currently works only in the
ImmuneSpace RStudio Docker session.
gatingSet
: A character. The name of the gating set to load.
getDataset(x, original_view = FALSE, reload = FALSE,
colFilter = NULL, ...)
Get a dataset form the connection.
x
: A character. The name of the dataset to download.
original_view
: A logical. If TRUE, download the original ImmPort
view; else, download the default grid view.
reload
: A logical. If TRUE, download the dataset whether a cached
version exist or not.
colFilter
: A character. A filter as returned by Rlabkey's
makeFilter
function.
...
: Extra arguments to be passed to labkey.selectRows
.
getGEMatrix(matrixName = NULL, cohortType = NULL,
outputType = "summary", annotation = "latest", reload = FALSE,
verbose = FALSE)
Downloads a probe-level or gene-symbol summarized expression matrix from
ImmuneSpace and constructs an ExpressionSet. Use experimentData()
on the resulting ExpressionSet object to see version info for annotation.
matrixName
: A character. The name of the gene expression matrix
to download.
cohortType
: A character. The name of a cohortType that has an
associated gene expression matrix. Note that if this argument is not
NULL, then matrixName
is ignored. CohortType is a concatenation of
"cohort" and "cell type" that allows the user to specify a matrix for the
cell type subset of a cohort.
outputType
: A character. one of 'raw', 'normalized' or 'summary'.
If 'raw', returns an expression matrix of non-normalized values by probe.
'normalized' returns normalized values by probe. 'summary' returns
normalized values averaged by gene symbol.
annotation
: A character. one of 'default', 'latest', or 'ImmSig'.
Determines which feature annotation set (FAS) is used. 'default' uses the
FAS from when the matrix was generated. latest' uses a recently updated
FAS based on the original. 'ImmSig' is specific to studies involved in
the ImmuneSignatures project and uses the annotation from when the
meta-study's manuscript was created.
reload
: A logical. If set to TRUE, the matrix will be downloaded
again, even if a cached copy exists in the ImmuneSpaceConnection object.
verbose
: A logical. If set to TRUE, notes on how the expressionSet
object was created will be printed, including normalization, summarization,
feature_annotation_set, and alias2symbol mapping version of org.Hs.eg.db.
getGEAnalysis(...)
Downloads data from the gene expression analysis results table.
...
: A list of arguments to be passed to labkey.selectRows
.
getGEInputs()
Downloads data from the gene expression input samples table.
getParticipantData(group, dataType, original_view = FALSE,
...)
Returns a data.table with data subset by participant group.
group
: A character or integer.
Call con$listParticipantGroups()
to see available participants
groups. Use group_id or group_name as input.
dataType
: A character. Use con$availableDatasets
to see
available dataset names.
getParticipantGEMatrix(group, outputType = "summary",
annotation = "latest", reload = FALSE)
Downloads probe-level or gene-symbol summarized expression matrices for all
participants within group
from ImmuneSpace and constructs an
ExpressionSet containing observations for each participant in group
where gene expression data is available.
group
: A character or integer.
Call con$listParticipantGroups()
to see available participants
groups. Use group_id or group_name as input.
outputType
: A character. one of 'raw', 'normalized' or 'summary'.
If 'raw', returns an expression matrix of non-normalized values by probe.
'normalized' returns normalized values by probe. 'summary' returns
normalized values averaged by gene symbol.
annotation
: A character. one of 'default', 'latest', or 'ImmSig'.
Determines which feature annotation set (FAS) is used. 'default' uses the
FAS from when the matrix was generated. latest' uses a recently updated
FAS based on the original. 'ImmSig' is specific to studies involved in
the ImmuneSignatures project and uses the annotation from when the
meta-study's manuscript was created.
reload
: A logical. If set to TRUE, matrices will be downloaded
again, even if a cached copy exists in the ImmuneSpaceConnection object.
downloadGEFiles(files, destdir = ".")
Downloads gene expression raw data files.
files
: A character. Filenames as shown on the
gene_expression_files dataset.
destdir
: A character. The local path to store the downloaded
files.
addTreatment(expressionSet)
Adds treatment information to the phenoData of an ExpressionSet.
expressionSet
: An ExpressionSet. The ExpressionSet object that has
been downloaded from the connection.
mapSampleNames(EM = NULL, colType = "participant_id")
Changes the sampleNames of an ExpressionSet fetched by getGEMatrix
using the information in the phenodData slot.
EM
: An ExpressionSet, as returned by getGEMatrix
.
colType
: A character. The type of column names. Valid options are
'expsample_accession' and 'participant_id'.
plot(...)
Visualizes a selected dataset. This method is used by the DataExplorer module on the ImmuneSpace portal.
dataset
: A character. The name of the dataset to plot, as
displayed by the listDataset method.
normalize_to_baseline
: A logical. If TRUE, the values are plotted
as log2 fold-change from baseline.
type
: A character. The type of plot. Valid choices are 'auto',
'heatmap', 'boxplot', 'lineplot', 'violinplot'. If set to 'auto', the
function will select an appropriate plot type for the selected data.
filter
: A filter as created by the makeFilter function from
Rlabkey.
facet
: The facetting for ggplot2 based plots. Valid choices are
'grid' and 'wrap'.
text_size
: The size of all text elements in the plot.
legend
: A character. Columns of the dataset or demographics to be
added as legend on the heatmap. This argument is ignored if the plot type
isn't heatmap.
show_virus_strain
: A logical. Should all the virus strains be
shown or should the values be averaged. Only used when dataset = 'hai'.
interactive
: A logical. If TRUE, an interactive plot will be
created. The default is FALSE.
...
: Extra argument to be passed to ggplot. e.g: shape = 'Age',
color = 'Race'.
clearCache()
Clears the cache. Removes downloaded datasets and expression matrices.
listWorkspaces()
ISCon$listWorkspaces(reload = FALSE)
listGatingSets()
ISCon$listGatingSets(reload = FALSE)
summarizeCyto()
ISCon$summarizeCyto()
summarizeGatingSet()
ISCon$summarizeGatingSet(gatingSet)
loadGatingSet()
ISCon$loadGatingSet(gatingSet)
listDatasets()
ISCon$listDatasets(output = c("datasets", "expression"))
getDataset()
ISCon$getDataset( x, original_view = FALSE, reload = FALSE, colFilter = NULL, transformMethod = "none", ... )
listGEMatrices()
ISCon$listGEMatrices(verbose = FALSE, reload = FALSE, participantIds = NULL)
listGEAnalysis()
ISCon$listGEAnalysis()
getGEMatrix()
ISCon$getGEMatrix( matrixName = NULL, cohortType = NULL, outputType = "summary", annotation = "latest", reload = FALSE, verbose = FALSE )
getGEAnalysis()
ISCon$getGEAnalysis(...)
getGEInputs()
ISCon$getGEInputs()
getGEFiles()
ISCon$getGEFiles(files, destdir = ".", quiet = FALSE)
downloadGEFiles()
ISCon$downloadGEFiles(files, destdir = ".")
addTreatment()
ISCon$addTreatment(expressionSet)
mapSampleNames()
ISCon$mapSampleNames(EM = NULL, colType = "participant_id")
listParticipantGroups()
ISCon$listParticipantGroups()
getParticipantData()
ISCon$getParticipantData( group, dataType, original_view = FALSE, reload = FALSE, colFilter = NULL, transformMethod = "none", ... )
listParticipantGEMatrices()
ISCon$listParticipantGEMatrices(group, verbose = FALSE)
getParticipantGEMatrix()
ISCon$getParticipantGEMatrix( group, outputType = "summary", annotation = "latest", reload = FALSE )
plot()
ISCon$plot(...)
print()
ISCon$print()
clearCache()
ISCon$clearCache()
new()
ISCon$new( study = NULL, login = NULL, password = NULL, verbose = FALSE, onTest = FALSE )
clone()
The objects of this class are cloneable with this method.
ISCon$clone(deep = FALSE)
deep
Whether to make a deep clone.
CreateConnection
ImmuneSpaceR-package
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | ## Not run:
# Create a connection (Initiate a ImmuneSpaceConnection object)
sdy269 <- CreateConnection("SDY269")
# Print the connection object
sdy269
# Retrieve the HAI dataset
HAI <- sdy269$getDataset("hai")
# Fetch a summarized gene expresssion matrix with latest annotation
LAIV <- sdy269$getGEMatrix("LAIV_2008")
# Visualize the ELISA dataset
sdy269$plot("elisa")
## End(Not run)
sdy <- try(CreateConnection("SDY269"))
if (inherits(sdy, "try-error")) {
warning("Read the Introduction vignette for more information on how to set
up a .netrc file.")
}
|
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