MATLAB:将几个变量保存到“-v7.3”(HDF5) .mat-files在使用“-append”标志时似乎更快。如何来吗?

NOTE: This question deals with an issue observed back in 2011 with an old MATLAB version (R2009a). As per the update below from July 2016, the issue/bug in MATLAB seems to no longer exist (tested with R2016a; scroll down to end of question to see update).This question deals with an issue observe