Shall I get weeks' K line of some stock according to its day's data?

Now I have days' data as below form:

date(1:10),[open(1:10),high(1:10),low(1:10),close(1:10)]

ans =

    '2015/05/04'
    '2015/05/05'
    '2015/05/06'
    '2015/05/07'
    '2015/05/08'
    '2015/05/11'
    '2015/05/12'
    '2015/05/13'
    '2015/05/14'
    '2015/05/15'

ans =

   17.2400   17.2400   16.8400   17.0500
   16.9700   16.9900   16.0900   16.3200
   16.3200   16.7500   16.2100   16.3000
   16.2700   16.5200   16.2200   16.3100
   16.4300   16.5400   16.0600   16.3500
   16.2200   16.5500   16.0300   16.5100
   16.4900   16.6400   16.2800   16.4800
   16.5700   16.6300   16.1400   16.3100
   16.3400   16.4900   16.1800   16.2300
   16.1500   16.3100   15.8300   16.0200

In the fact, the data is large, I just show the first ten;

I want to get its week K line by HighLow() or Candle() function;

So how shall I transfer this data or some other ways?