Tried this got:"Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters."
Anonymous functions usage when running the following program to apply and then plot a prediction, sensor reading and measurement update Invalid expression.
1 次查看(过去 30 天)
显示 更早的评论
I get error on the foll. program
"Invalid expression. When calling a function or indexing a variable, use parentheses.
Otherwise, check for mismatched delimiters."
U = [ 1 -1 3 4 ]; % an artificial input sequence
% applyPredictionUpdate returns the predicted state:
applyPredictionUpdate = @(bel, u_t) [bel '.PU(' num2str(u_t) ')'];
% readSensor returns the current sensor's reading:
readSensor = @() [ 'Z(' num2str(round(20*rand())) ')' ];
% applyMeasurementUpdate returns the state updated by the measurements:
applyMeasurementUpdate = @(sensorReading, belBar) [ belBar '.MU(' sensorReading ')' ];
bel = 'PRIOR';
for u_t = U
applyPredictionUpdate(bel, u_t);
readSensor();
applyMeasurementUpdate((sensorReading, belBar)[sensorReading, belBar]);
end
plotFilterLoop(bel);
采纳的回答
更多回答(1 个)
Voss
2022-3-26
applyMeasurementUpdate is an anonymous function defined to take two inputs, sensorReading and belBar:
applyMeasurementUpdate = @(sensorReading, belBar) [ belBar '.MU(' sensorReading ')' ];
When calling applyMeasurementUpdate, you only need to give it those two inputs, like this:
applyMeasurementUpdate(sensorReading, belBar);
Just like you are calling applyPredictionUpdate with inputs bel and u_t a couple of lines above:
applyPredictionUpdate(bel, u_t);
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Software Development Tools 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!