Retrieve alphanumeric keys from source file associated with BioIndexedFile object
Keys = getKeys(
Keys = getKeys(
a cell array of character vectors specifying all the keys to the entries
in the source file associated with
a BioIndexedFile object. The keys appear in the same order as they
do in the source file, even if they are not unique.
Object of the
Cell array of character vectors specifying all the keys to the entries in the source file. The keys appear in the same order as they do in the source file, even if they are not unique.
Construct a BioIndexedFile object to access a table containing cross-references between gene names and gene ontology (GO) terms:
% Create variable containing full absolute path of source file sourcefile = which('yeastgenes.sgd'); % Create a BioIndexedFile object from the source file. Indicate % the source file is a tab-delimited file where contiguous rows % with the same key are considered a single entry. Store the % index file in the Current Folder. Indicate that keys are % located in column 3 and that header lines are prefaced with ! gene2goObj = BioIndexedFile('mrtab', sourcefile, '.', ... 'KeyColumn', 3, 'HeaderPrefix','!')
Retrieve all the keys for the entries in the source file, then view the first 12 keys:
% Retrieve all keys for entries in gene2goObj keys = getKeys(gene2goObj); % View the first 12 keys keys(1:12)
ans = '15S_RRNA' '21S_RRNA' 'AAC1' 'AAC3' 'AAD10' 'AAD14' 'AAD15' 'AAD16' 'AAD3' 'AAD4' 'AAD6' 'AAH1'
Use this method to see a complete list of the alphanumeric keys, in the order they occur in the source file from which the BioIndexedFile object was created.