Description Usage Arguments Details Value Slots See Also
This class enables the alignment of LC-MS samples.
It takes files containing groups of structurally related peaks, generated by groupPEAKS
function, and aligns them in their original sample acquisition order.
It validates peak groups obtained during alignment by correlating peak intensities in all samples.
Finally, it fills in missing peak intensity values using raw data.
1 2 3 4 5 6 7 | validmassFlowTemplate(object, realtime = FALSE)
## S4 method for signature 'massFlowTemplate'
show(object)
## S4 method for signature 'massFlowTemplate'
checkNEXT(object)
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object |
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massFlowTemplate
object stores sample alignment data.
Slot @tmp is the template, listing information for every detected peak, such as the m/z, rt, into values and the assigned peak-group.
Template is first built using the first datafile in the study.
To initiate template built, constructor function buildTMP
must be called, providing a "filepath" to the csv file with the details on the study samples.
Template is updated with every round of sample alignment. Alignment results are stored in slot @data for each sample separately.
Method returns filename to be processed next.
filepath
character
specifying the absolute path to a csv
file with study sample names and their acquisition (run) order.
samples
data.frame
storing study sample names and their acquisition order.
tmp
data.frame
storing sample alignment and annotation template.
data
list
containg annotated and aligned peak tables for the already processed samples.
params
list
containg alignment and annotation parameters.
valid
data.frame
storing validated sample alignment template with peakids and corresponding Pseudo Chemical Spectra id.
peaks
list
containing peak intergration values for every peak (NA if peak was not detected), listead peak-wise.
values
list
containing peak intergration values for every sample (NA if peak was not detected), listed sample-wise.
history
list
containg names of methods that have already been applied to the object.
buildTMP
, alignPEAKS
, validPEAKS
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