Main Content

hasdata

Determine if data is available to read

Description

example

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).

Examples

collapse all

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);
end

Input Arguments

collapse all

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

Extended Capabilities

Version History

Introduced in R2014b

See Also