[matlab] relocate an object in the figure window

function movePosition(myh,myfrac,opt) % move an object to a new location relative to current axes % usage: %      movePosition(obj-handle,fraction,opt) %             opt: 'x' ==> x-coordiante is given in fraction of xlim %                    'y' ==> y-coordiante is given in fraction of ylim %                  'xy' ==> both x,y-coordiante is given in fraction %                                (could be a 2-element vector) % http://scriptdemo.blogspot.ca if nargin~=3    help movePosition    return end if numel(myh)>1    for nh=1:numel(myh)        movePosition(myh(nh),myfrac,opt);    end    return end if ~ishandle(myh)    error('need a valid object handle') end oriPos=get(myh,'position'); if isempty(oriPos)     error('no position attribute is available') end if isnumeric(opt)    oriPos(1)=myfrac;    oriPos(2)=opt; else    switch lower(opt)     case {'x'}         cXLim=get(gca,'xlim');         oriPos(1)=oriPos(1)+myfrac*(cXLim(2)-cXLim(1));     case {'y'}         cYLim=get(gca,'ylim');         oriPos(2)=oriPos(2)+myfrac*(cYLim(2)-cYLim(1));     case {'xy'}         if numel(myfrac)==1             myfrac=[myfrac myfrac];         end         cXLim=get(gca,'xlim');         oriPos(1)=oriPos(1)+myfrac(1)*(cXLim(2)-cXLim(1));         cYLim=get(gca,'ylim');         oriPos(2)=oriPos(2)+myfrac(2)*(cYLim(2)-cYLim(1));     otherwise         error(['unknown opt: ',opt])    end end set(myh,'position',oriPos);

[matlab] show available tags

function showtags(figH) % to show all the tags in figure(s) % usage: %        showtags([figure_handles]) % e.g., %        showtags(gcf) % http://scriptdemo.blogspot.ca if nargin==1    availableTag=unique(get(findobj(figH),'tag'));    availableTagC=unique(get(findobj(figH),'Tag')); else    availableTag=unique(get(findobj(),'tag'));    availableTagC=unique(get(findobj(),'Tag')); end if sum(~cellfun('isempty',availableTag))~=0     disp('Available tags: ')     disp(availableTag) end if sum(~cellfun('isempty',availableTagC))~=0     disp('Available Tags: ')     disp(availableTagC) end

[Bash] sum numbers in an array

#!/bin/bash # sum all/part the numbers in an array using bc # usage: #           mysum number-array [index0 index1] #           Note: the index starts from 1 # e.g., #      myA=(34 23 32.5 33.2 25) #      mysum "${myA[*]}" ==> 147.7 #      mysum "${myA[*]}" 1 2 ==> 57 #      mysum "${myA[*]}" 2 4 ==> 88.7 #      mysum "12 23 12" ==> 47 # # http://scriptdemo.blogspot.com isDebug=0 if [ $# -eq 0 ]; then    sed -n '3,8p' `which mysum`    exit else   myA=($1)   [ ${isDebug} -eq 1 ] && echo ${myA[*]}   [ ${isDebug} -eq 1 ] && echo "narg: $#"   if [ $# -eq 1 ]; then      if [ ${isDebug} -eq 1 ]; then         echo "sum: `echo ${myA[*]} | sed 's/\ /+/g' | bc -l`"      else         echo "`echo ${myA[*]} | sed 's/\ /+/g' | bc -l`"      fi   elif [ $# -eq 2 ]; then      ind0=`expr $2 - 1`      nC=`expr ${#myA[*]} - ${ind0}`      if [ ${isDebug} -eq 1 ]; then         echo "sum: `echo ${myA[*]:${ind0}:${nC}} | sed 's/\ /+/g' | bc -l`"      else         echo "`echo ${myA[*]:${ind0}:${nC}} | sed 's/\ /+/g' | bc -l`"      fi   elif [ $# -eq 3 ]; then      ind0=`expr $2 - 1`      nC=`expr $3 - ${ind0}`      if [ ${isDebug} -eq 1 ]; then         echo "sum: `echo ${myA[*]:${ind0}:${nC}} | sed 's/\ /+/g' | bc -l`"      else         echo "`echo ${myA[*]:${ind0}:${nC}} | sed 's/\ /+/g' | bc -l`"      fi   fi