Squeeze disappeared (removing dimensions which are equal to 1)?

purplishrock · December 10, 2020, 5:30am

I found old questions about using squeeze but the function seems to have disappeared.

Did it move into another library ?

I need it because I’m attempting to translate some matlab code

jling · December 10, 2020, 5:51am

squeeze is deprecated in favor of dropdims .

JuliaLang/julia/blob/release-0.7/NEWS.md#deprecated-or-removed

Julia v0.7.0 Release Notes
==========================

New language features
---------------------

  * Local variables can be tested for being defined
    using the new `@isdefined variable` macro ([#22281]).

  * Destructuring in function arguments: when an expression such as `(x, y)` is used as
    a function argument name, the argument is unpacked into local variables `x` and `y`
    as in the assignment `(x, y) = arg` ([#6614]).

  * Named tuples, with the syntax `(a=1, b=2)`. These behave very similarly to tuples,
    except components can also be accessed by name using dot syntax `t.a` ([#22194]).

  * Keyword argument containers (`kw` in `f(; kw...)`) are now based on named tuples. Dictionary
    functions like `haskey` and indexing can be used on them, and name-value pairs can be
    iterated using `pairs(kw)`. `kw` can no longer contain multiple entries for the same
    argument name ([#4916]).

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purplishrock · December 10, 2020, 6:09am

i found an interesting discussion about dropdims.

https://stackoverflow.com/questions/52505760/dropping-singleton-dimensions-in-julia

I’m currently translating code, but based on that discussion I think the right thing to do is to figure out why squeeze was being used, and try and code the functionality such that it doesn’t require it.

Boris · May 14, 2021, 8:00am

I don’t know if I am too late to the party, giving the post date, but in Matlab squeeze just calls reshape and is fairly unreliable. I’ve had a lot of headaches with squeeze.

I think it is always better to use reshape and reshape exists in Julia as well.