1.2.1.0 ms.clearbuffer

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ms.clearbuffer - Function

1.2.1 Clear the internal buffer.
Description

Clears the internal buffer, returning the memory. This can be used after the (final) clipping/flagging operations have been performed.

Arguments

Returns
bool

Example

ms.open("3C273XC1.MS",False)
ms.select({’antenna1’:[3]})
ms.fillbuffer("PHASE")
rec=ms.getbuffer()
rec[’flag_row’][17]=True
ms.setbufferflags(rec)
ms.writebufferflags()
ms.clearbuffer()

We open the MS for reading, select a subset and read the data. We get the data into casapy, flag timeslot 17 and put the modified flags back into the buffer. We then write the buffer flags back to the table, causing the corresponding data to be marked flagged on subsequent access. Finally we clear the internal buffer. This step can be omitted if you are about to do another fillbuffer().

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