User`s guide

1 Data Processing
multiexperiment iddata object by splitting the d ata from a single sessio n into
multiple segmen ts to exclude bad data, and merge the good data portions.
Note The idfrd object does not support the id data equivalent of
multiexperiment data.
Limitations on Data Sets
You can only merge data sets th at have all o f the following cha racteristics:
• Same number of input and output channels.
• Same input and output channel names.
• Same data domain (that is, time-domain data or frequency-domain data).
Merging Data Sets
Create a multiexperim ent iddata object by merging iddata objects , where
each contains data from a single experiment o r is a multiexperiment data set.
For example, you can use the following syntax to merge data:
load iddata1 % Loads iddata object z1
load iddata3 % Loads iddata object z3
z = merge(z1,z3) % Merges experiments z1 and z3 into
% the iddata object z
These commands create an iddat a object that conatainstwoexperiments,
where the expe rime nts are assigne d default names
'Exp1' and 'Exp2',
respectively.
Adding Experiments to an Existing iddata Object
You ca n add experiments in dividually to an id data object as an a ltern a tive
approach to merging d ata sets.
Forexample,toaddtheexperimentsinthe
iddata object dat4 to data,use
the following syntax:
data(:,:,:,'Run4') = dat4
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