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: http://xmm.vilspa.esa.es/sas/8.0.0/doc/dal/node29.html
Дата изменения: Tue Jul 1 23:47:07 2008 Дата индексирования: Fri Sep 5 17:12:49 2008 Кодировка: Поисковые слова: photosphere |
The following example illustrates how to change the values in a column.
program modifyColumn use dal type(DataSetT) :: set type(TableT) :: tab type(ColumnT) :: col integer(kind=int32), dimension(:), pointer :: x set = dataSet("test.dat",Modify) tab = table(set,"test") col = column(tab,"x",0,0,Modify) x => int32Data(col) x = 124 call release(col) call release(set) end program
The following procedures can operator on a column handle:
To reduce the size of the column that is accessed in one go (and thereby reducing memory usage), one can select a certain range:
Note: the current implementation of the DAL does not support the column seek function.
XMM-Newton SOC/SSC -- 2008-07-01