sample() from a DataFrame view causes errors

[Byrth]

This works as expected:
sample(eachrow(view(df)))

But this fails:
sample(eachrow(view(df)), 10)

and this fails (same cause but different place):
sample(eachrow(view(df)), 10; replace=false)

The errors imply that the x allocated in sample() (line 459 in my version of StatsBase) is allocating a data type that has no implicit conversion:

ERROR: MethodError: Cannot `convert` an object of type DataFrameRow{DataFrame,DataFrames.Index} to an object of type DataFrameRow{SubDataFrame{DataFrame,DataFrames.Index,Array{Int64,1}},DataFrames.Index}
Closest candidates are:
  ...
Stacktrace:
 [1] setindex!(::Array{DataFrameRow{SubDataFrame{DataFrame,DataFrames.Index,Array{Int64,1}},DataFrames.Index},1}, ::DataFrameRow{DataFrame,DataFrames.Index}, ::Int64) at ./array.jl:782
 [2] fisher_yates_sample!(::Random._GLOBAL_RNG, ::DataFrames.DataFrameRows{SubDataFrame{DataFrame,DataFrames.Index,Array{Int64,1}},DataFrames.Index}, ::Array{DataFrameRow{SubDataFrame{DataFrame,DataFrames.Index,Array{Int64,1}},DataFrames.Index},1}) at /root/.julia/packages/StatsBase/unDUx/src/sampling.jl:160

This doesn't affect me because I can just sample 1:nrow(df) and index to get the same row, but just thought I should put it out there.

[nalimilan]

It works here (after removing view). What versions of Julia, StatsBase and DataFrames are you using?

[Byrth]

It worked for me without view too. The error was caused by view.

I was using the max for each at time of posting. I will check and post tomorrow.

[nalimilan]

view(df) isn't supposed to work, and I don't get the same error as the one you posted.

[Byrth]

Ok then