[Numpy-discussion] Comments on numarray - 4

Edward C. Jones edcjones at erols.com
Tue Dec 17 19:37:03 CST 2002


The optional shape argument to fromstring is not documented.

-----------------

I suggest a documentation section on NumericTypes. "Int8.bytes" and
need documenting.

----------------

      Table of Automatic Coercions (found by experiment)

          B   I8   U8  I16  U16  I32  U32  I64  U64  F32  F64  C32  C64
      ------------------------------------------------------------------
    B |  *I8   I8   U8  I16  U16  I32  U32  I64  U64  F32  F64  C32  C64
   I8 |        I8 *I16  I16  U16  I32  U32  I64  U64  F32  F64  C32  C64
   U8 |             U8  I16  U16  I32  U32  I64  U64  F32  F64  C32  C64
  I16 |                 I16 *I32  I32  U32  I64  U64  F32  F64  C32  C64
  U16 |                      U16  I32  U32  I64  U64  F32  F64  C32  C64
  I32 |                           I32 *I64  I64  U64  F32  F64  C32  C64
  U32 |                                U32  I64  U64  F32  F64  C32  C64
  I64 |                                     I64 *I64 ?F32  F64  C32  C64
  U64 |                                          U64 ?F32  F64  C32  C64
  F32 |                                               F32  F64  C32  C64
  F64 |                                                    F64 ?C32  C64
  C32 |                                                         C32  C64
  C64 |                                                              C64

The names are listed in the order used in "numerictypes.py". The "*" 
cases are exceptions treated there. Are the "?" conversions correct? See 
"genericPromotionExclusions" in "numerictypes.py".





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