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模型属性

指定和查询模型特性,例如系数、标签和单位

模型属性是存储关于动态系统模型的所有信息的数据字段。存储在模型属性中的数据包括模型动态特性,如传递函数系数、状态空间矩阵和时滞。访问这些属性可提取或更改有关模型动态特性的数据。您还可以指定关于模型的元数据,例如输入和输出名称或单位。

函数

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getAccess model property values
setSet or modify model properties
tfdataAccess transfer function data
zpkdataAccess zero-pole-gain data
ssdataAccess state-space model data
frdataAccess data for frequency response data (FRD) object
piddataAccess coefficients of parallel-form PID controller
pidstddataAccess coefficients of standard-form PID controller
piddata2Access coefficients of parallel-form 2-DOF PID controller
pidstddata2Access coefficients of standard-form 2-DOF PID controller
dssdataExtract descriptor state-space data
chgFreqUnitChange frequency units of frequency-response data model
chgTimeUnitChange time units of dynamic system
isctDetermine if dynamic system model is in continuous time
isdtDetermine if dynamic system model is in discrete time
isemptyDetermine whether dynamic system model is empty
isfiniteDetermine if model has finite coefficients
isParametricDetermine if model has tunable parameters
isproperDetermine if dynamic system model is proper
isrealDetermine if model has real-valued coefficients
issisoDetermine if dynamic system model is single-input/single-output (SISO)
isstableDetermine if dynamic system model is stable
isstaticDetermine if model is static or dynamic
orderQuery model order
ndimsQuery number of dimensions of dynamic system model or model array
sizeQuery output/input/array dimensions of input–output model and number of frequencies of FRD model
findopCompute operating condition from specifications (自 R2023b 起)
frdfunApply a function to the frequency response value at each frequency of an frd model object (自 R2020a 起)

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