figure(), imagesc() vs figure(); imagesc()

[cmey]

Hi,
reporting a small problem:

using Winston
# note the difference of using , instead of ;
figure(); imagesc(rand(4,4)) # OK, displays image
figure(), imagesc(rand(4,4)) # FAILS, displays only the window with empty content (no image displayed), same result as if only figure() had been called

It happens both in script and at the REPL.
This is on latest Julia prerelease snapshot for Win 7 32 bits :

julia> versioninfo()
Julia Version 0.3.0-prerelease+2809
Commit d1095bb* (2014-04-28 22:41 UTC)
Platform Info:
  System: Windows (i686-w64-mingw32)
  CPU: Intel(R) Core(TM) i5 CPU       M 560  @ 2.67GHz
  WORD_SIZE: 32
  BLAS: libopenblas (DYNAMIC_ARCH NO_AFFINITY)
  LAPACK: libopenblas
  LIBM: libopenlibm

and latest Winston:

julia> Pkg.installed("Winston")
v"0.11.0"

I report this to Winston because the following works as expected in Base Julia:

julia> versioninfo(), versioninfo()
Julia Version 0.3.0-prerelease+2809
Commit d1095bb* (2014-04-28 22:41 UTC)
Platform Info:
  System: Windows (i686-w64-mingw32)
  CPU: Intel(R) Core(TM) i5 CPU       M 560  @ 2.67GHz
  WORD_SIZE: 32
  BLAS: libopenblas (DYNAMIC_ARCH NO_AFFINITY)
  LAPACK: libopenblas
  LIBM: libopenlibm
Julia Version 0.3.0-prerelease+2809
Commit d1095bb* (2014-04-28 22:41 UTC)
Platform Info:
  System: Windows (i686-w64-mingw32)
  CPU: Intel(R) Core(TM) i5 CPU       M 560  @ 2.67GHz
  WORD_SIZE: 32
  BLAS: libopenblas (DYNAMIC_ARCH NO_AFFINITY)
  LAPACK: libopenblas
  LIBM: libopenlibm
(nothing,nothing)

and also with strings:

julia> "hello","world"
("hello","world")

i.e. it prints both elements as expected (in the REPL), regardless of , or ;

After reading http://winston.readthedocs.org/en/latest/faq.html#why-is-nothing-displayed-when-i-call-plot-in-a-script I note that it might actually be the opposite problem: it should not display anything until a call to display() to be consistent?

[nolta]

Hmm, i'm not sure forcing people to write display(figure()) in scripts would make anyone happy.

[cmey]

Agreed,
that's currently the case : I have to write figure(); h = imagesc(...); display(h) everywhere.
Why not display automatically ?

[cmey]

Closing this as this makes sense as it is. The explanation is using , returns a Tuple.