function?[s?err_mse?iter_time]=block_gp（xAgroupvarargin）
%?block_gp:?Block?Gradient?Pursuit?algorithm?（modification?from?[1]）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?Usage
%?[s?err_mse?iter_time]=block_gp（xPm‘option_name‘‘option_value‘）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?Input
%???Mandatory:
%???????????????x???Observation?vector?to?be?decomposed
%???????????????P???Either:
%???????????????????????1）?An?nxm?matrix?（n?must?be?dimension?of?x）
%???????????????????????2）?A?function?handle?（type?“help?function_format“?
%??????????????????????????for?more?information）
%??????????????????????????Also?requires?specification?of?P_trans?option.
%???????????????????????3）?An?object?handle?（type?“help?object_format“?for?
%??????????????????????????more?information）
%???????????????m???length?of?s?
%
%???Possible?additional?options:
%???（specify?as?many?as?you?want?using?‘option_name‘‘option_value‘?pairs）
%???See?below?for?explanation?of?options:
%__________________________________________________________________________
%???option_name????|?????available?option_values????????????????|?default
%--------------------------------------------------------------------------
%???stopCrit???????|?M?corr?mse?mse_change???????????????????|?M
%???stopTol????????|?number?（see?below）?????????????????????????|?n/4
%???P_trans????????|?function_handle?（see?below）????????????????|?
%???maxIter????????|?positive?integer?（see?below）???????????????|?n
%???verbose????????|?true?false????????????????????????????????|?false
%???start_val??????|?vector?of?length?m?????????????????????????|?zeros
%???GradSteps??????|?‘auto‘?or?integer??????????????????????????|?‘auto‘
%
%???Available?stopping?criteria?:
%???????????????M???????????-???Extracts?exactly?M?=?stopTol?elements.
%???????????????corr????????-???Stops?when?maximum?correlation?between
%???????????????????????????????residual?and?atoms?is?below?stopTol?value.
%???????????????mse?????????-???Stops?when?mean?squared?error?of?residual?
%???????????????????????????????is?below?stopTol?value.
%???????????????mse_change??-???Stops?when?the?change?in?the?mean?squared?
%???????????????????????????????error?falls?below?stopTol?value.
%
%???stopTol:?Value?for?stopping?criterion.
%
%???P_trans:?If?P?is?a?function?handle?then?P_trans?has?to?be?specified?and?
%????????????must?be?a?function?handle.?
%
%???maxIter:?Maximum?of?allowed?iterations.
%
%???verbose:?Logical?value?to?allow?algorithm?progress?to?be?displayed.
%
%???start_val:?Allows?algorithms?to?start?from?partial?solution.
%
%???GradSteps:?Number?of?gradient?optimisation?steps?per?iteration.
%??????????????‘auto‘?uses?inner?products?to?decide?if?more?gradient?steps?
%??????????????are?required.?
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?Outputs
%????s??????????????Soluti

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2009-06-07?17:44??GroupSparseBox\
?????文件???????14588??2009-01-30?15:47??GroupSparseBox\block_gp.m
?????文件???????17851??2009-01-30?15:47??GroupSparseBox\block_nomp.m
?????文件???????15806??2009-01-30?15:48??GroupSparseBox\block_pcgp.m
?????文件?????????856??2009-01-30?16:07??GroupSparseBox\BMP.m
?????文件?????????919??2009-01-24?22:42??GroupSparseBox\BOMP.m
?????文件????????1218??2009-01-30?16:14??GroupSparseBox\demo.m
?????文件?????????549??2009-01-24?22:18??GroupSparseBox\fdrthresh.m
?????文件?????????878??2009-01-24?22:18??GroupSparseBox\GenGroupSparseProblem.m
?????文件?????????872??2009-01-30?16:07??GroupSparseBox\GMP.m
?????文件?????????863??2009-01-24?22:17??GroupSparseBox\GOMP.m
?????文件???????15088??2009-01-30?16:11??GroupSparseBox\group_gp.m
?????文件???????18126??2009-01-30?15:46??GroupSparseBox\group_nomp.m
?????文件???????16090??2009-01-30?15:46??GroupSparseBox\group_pcgp.m
?????文件?????????106??2009-01-24?22:18??GroupSparseBox\matrix_normalizer.m
?????文件????????1683??2009-01-24?22:18??GroupSparseBox\ReGOMP.m
?????文件????????1354??2009-01-24?22:17??GroupSparseBox\StGOMP.m
?????文件????????1559??2009-06-07?17:44??license.txt