matlab每隔一定时间,按固定时间间隔更新数据

function funOnMarketData(varargin)

global  countInst instruments recInstrument; %recInstrument1 countInst1 ;

InstrumentID = varargin{3};

BidPrice1 = varargin{4};

BidVolume1 = num2cell(varargin{5});

AskPrice1 = varargin{6};

AskVolume1 = varargin{7};

OpenPricel = varargin{8};

HighestPrice = varargin{9};

LowestPrice = varargin{10};

LastPrice = varargin{11};

OpenInterest = varargin{12};

Volume  = varargin{13};

UpperLimitPrice = varargin{14};

LowerLimitPrice = varargin{15};

PreSettlementPrice = varargin{16};

AveragePrice = varargin{17};

UpdateTime = strcat(num2str(varargin{18}),':',num2str(varargin{19}));

if InstrumentID  == char(instruments(1,1))

%if not state No.of instruments,need to put in front

countInst = countInst + 1;

recInstrument(countInst,1)= {char(datestr(now,'yyyy-mm-dd'))};

DATA(countInst,2:14) = [UpdateTime,InstrumentID,OpenPricel,HighestPrice,LowestPrice,...

LastPrice,BidPrice1,BidVolume1,AskPrice1,AskVolume1,Volume,OpenInterest,PreSettlementPrice];

OS30 = DATA(1:60:(length(countInst)-60),7);

S30 = DATA(60:60:(length(countInst)),5:7);

OM1 = DATA(1:120:(length(countInst)-120),7);

M1 = DATA(120:120:(length(countInst)),5:7);

OM3 = DATA(1:360:(length(countInst)-360),7);

M3 = DATA(360:360:(length(countInst)),5:7);

OM5 = DATA(1:600:(length(countInst)-600),7);

M5 = DATA(600:600:(length(countInst)),5:7);

OM10 = DATA(1:1200:(length(countInst)-1200),7);

M10 = DATA(1200:1200:(length(countInst)),5:7);

OM15 = DATA(1:1800:(length(countInst)-1800),7);

M15 = DATA(1800:1800:(length(countInst)),5:7);

OM30 = DATA(1:3600:(length(countInst)-3600),7);

M30 = DATA(3600:3600:(length(countInst)),5:7);

end