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Determine if data is available to read


tf = hasdata(ds)



tf = hasdata(ds) returns logical 1 (true) if there is data available to read from the datastore specified by ds. Otherwise, it returns logical 0 (false).


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Create a datastore from the sample file, mapredout.mat, which is the output file of the mapreduce function.

ds = datastore('mapredout.mat');

While there is data available in the datastore, read the data.

while hasdata(ds)
    T = read(ds);

Input Arguments

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Input datastore. You can use these datastores as input to the hasdata method.

See Also

Introduced in R2014b