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table.getcol - Function

3.2.1 get a specific column


Description

The entire column (or part of it) is returned. Warning: it might be big! The functions can only be used if all arrays in the column have the same shape. That is guaranteed for columns containing scalars or fixed shaped arrays. For columns containing variable shaped arrays it only succeeds if all those arrays happen to have the same shape.
Note that function getvarcol can be used to get a column of arbitrary shaped arrays, which also handles empty cells correctly. Function isvarcol tells if a column contains variable shaped arrays. shaped

Arguments





Inputs

columnname

Name of column

allowed:

string

Default:

startrow

First row to read (default 0)

allowed:

int

Default:

0

nrow

Number of rows to read (default -1 means till the end)

allowed:

int

Default:

-1

rowincr

Increment in rows to read (default 1)

allowed:

int

Default:

1

Returns
anyvariant

Example

 
 
  tb.open("3C273XC1.MS")  
# True  
  gain=tb.getcol("DATA")  
  print gain.shape  
# (4, 1, 7669)  
 

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