hasdata

Determine if data is available to read from MDF datastore

Syntax

tf = hasdata(mdfds)

Description

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

Examples

Check MDF Datastore for Readable Data

Use hasdata in a loop to control read iterations.

mdfds = mdfDatastore("C:\myMDFData\CANape.MF4");
while hasdata(mdfds)
    m = read(mdfds);
end

Input Arguments

mdfds — MDF datastore

MDF datastore object

MDF datastore, specified as an MDF datastore object.

Example: mdfds = mdfDatastore("CANape.MF4")

Output Arguments

tf — Indicator of data to read

1 | 0

Indicator of data to read, returned as a logical 1 (true) or 0 (false).

Version History

Introduced in R2017b