Unable to run the predict function

Hi,

I have created a Model by training. Now I want to use the model for predicting. Property sheet shows me three menus: ModelName, ModelName.predictFcn and ModelName.HowtoPredict. ModelName.HowtoPredict showed me a line of text like:

yfit = C.predictFcn(T)

and some more text. I replaced the line to the following:

yfit = ModelName.predic(testdata);

but I am getting following errors:

run(GTM3_Acc62p8.HowToPredict);

Error using run (line 66)

yfit = GTM3_Acc62p8.predictFcn(testdata); not found.

Somebody please gide me.

Zulfi.

[Zulfiqar Khan]

Hi,

I tried the following but I am still getting error:

yfit = predict(GTM3_Acc62p8, testdata{:,GTM3_Acc62p8.PredictorNames})

Reference to non-existent field 'PredictorNames'.

>> yfit = predict(GTM3_Acc62p8, testdata{:,GTM3_Acc62p8.smile});

Reference to non-existent field 'smile'.

Some body please guide me. I dont know what is meant by predictorNames. I have attached the results of training.

Zulfi.

[Walter Roberson]

GTM3_Acc62p8 appears to be a struct and GTM3_Acc62p8.HowToPredict appears to contain a character vector that appears to be in the form of a function call with an assignment to yfit. And you appear to be attempting to run(GTM3_Acc62p8.HowToPredict) and so appear to be attempting to run() a character vector that is a MATLAB statement.

run() is not used to execute MATLAB statements that are in character vectors or character arrays. run() must be provided with a file name (possibly qualified) and it causes the content of the file to be evaluated.

If you have a character vector that you want to execute, the MATLAB function is eval().

However, most of the time you should avoid eval() and instead create functions, possibly together with function handles.

[Zulfiqar Khan]

Hi,

I am doing it first time. I got this command when I export the model. I got information from the following link:

Export Classification Model for Use with New Data

I have done the training using Matlab. Now I want to do prediction using Matlab. But for prediction I have a different file. I have loaded columns of file in two files: colsofData.jpg and colsofData_contd.jpg.

I also checked the link:

using exported classifier model

Please guide me how to fix the following error:

yfit = predict(GTM3_Acc62p8, testdata{:,GTM3_Acc62p8.PredictorNames})

Reference to non-existent field 'PredictorNames'.

>> yfit = predict(GTM3_Acc62p8, testdata{:,GTM3_Acc62p8.smile});

Reference to non-existent field 'smile'.

Some body please guide me.

Zulfi.