Determine if file-set has another file in file-set
tf = hasNextFile(fs)
example
tf = hasNextFile(fs) returns logical 1 (true) if any more files are available to process in the FileSet object specified by fs. Otherwise, it returns logical 0 (false).
fs
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true
FileSet
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Check if a file-set has another file and read the data iteratively.
Create a file-set fs for a collection of files.
folder = {'accidents.mat','airlineResults.mat','census.mat','earth.mat'}
folder = 1x4 cell Columns 1 through 3 {'accidents.mat'} {'airlineResults...'} {'census.mat'} Column 4 {'earth.mat'}
fs = matlab.io.datastore.FileSet(folder)
fs = FileSet with properties: NumFiles: 4 NumFilesRead: 0 FileInfo: Show FileInfo for all 4 files AlternateFileSystemRoots: {}
Use the hasNextFile and nextfile functions to read file information one file at a time while files remain in the set.
hasNextFile
nextfile
while hasNextFile(fs) file = nextfile(fs) end
file = 1x1 FileInfo Filename FileSize _______________________________________________________________________________ ________ "/mathworks/devel/bat/BR2020bd/build/matlab/toolbox/matlab/demos/accidents.mat" 7343
file = 1x1 FileInfo Filename FileSize ____________________________________________________________________________________ __________ "/mathworks/devel/bat/BR2020bd/build/matlab/toolbox/matlab/demos/airlineResults.mat" 1.5042e+05
file = 1x1 FileInfo Filename FileSize ____________________________________________________________________________ ________ "/mathworks/devel/bat/BR2020bd/build/matlab/toolbox/matlab/demos/census.mat" 353
file = 1x1 FileInfo Filename FileSize ___________________________________________________________________________ ________ "/mathworks/devel/bat/BR2020bd/build/matlab/toolbox/matlab/demos/earth.mat" 32522
File-set, specified as a FileSet object. To create a FileSet object, see matlab.io.datastore.FileSet.
matlab.io.datastore.FileSet
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