# How to convert Flux.jl's tracked values to just values

**URL:** <https://discourse.julialang.org/t/how-to-convert-flux-jls-tracked-values-to-just-values/16051>\
**Category:** Machine Learning\
**Tags:** first-steps, flux\
**Created:** [October 9, 2018, 2:00am UTC](https://discourse.julialang.org/t/how-to-convert-flux-jls-tracked-values-to-just-values/16051 "2018-10-09T02:00:45Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![xiaodai](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xiaodai/32/15937_2.png) [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Post date:** [October 9, 2018, 2:00am UTC](https://discourse.julialang.org/t/how-to-convert-flux-jls-tracked-values-to-just-values/16051/1 "2018-10-09T02:00:45Z")

</div>

I have a Flux.jl tracked calculated value and I would like to convert it to Float64 for plotting. How do I do that?

```julia
using Flux
model = Flux.Chain(
  Dense(14*16+4, 64, relu),    
  Dense(64, 16, relu),  
  Dense(16, 1, relu));
loss(x,y) = sum((model(x) .- y).^2)
opt = ADAM(params(model))

x = rand(Bool, 14*16+4)
tracked_value = model(x)
Float64.(tracked_value) # doesn't work

```

just gives me the tracked value not the Float64 values

---

<div class="post-metadata">

**Author:** ![oxinabox](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/oxinabox/32/206603_2.png) [@oxinabox](https://discourse.julialang.org/u/oxinabox)\
**Post date:** [October 9, 2018, 4:13am UTC](https://discourse.julialang.org/t/how-to-convert-flux-jls-tracked-values-to-just-values/16051/2 "2018-10-09T04:13:57Z")

</div>

Should be

`Tracker.data(tracked_value)`

cf [https://github.com/FluxML/Flux.jl/issues/398](https://github.com/FluxML/Flux.jl/issues/398)