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Preprocess Data

Remove means, offsets, and linear trends; reconstruct missing data, change data sampling rate

Functions

detrend Subtract offset or trend from data signals
retrend Add offsets or trends to data signals
diff Difference signals in iddata objects
idfilt Filter data using user-defined passbands, general filters, or Butterworth filters
misdata Reconstruct missing input and output data
nkshift Shift data sequences
idresamp Resample time-domain data by decimation or interpolation
resample Resample time-domain data by decimation or interpolation (requires Signal Processing Toolbox software)
getTrend Data offset and trend information
chgFreqUnit Change frequency units of frequency-response data model
fdel Delete specified data from frequency response data (FRD) models
TrendInfo Offset and linear trend slope values for detrending data
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