[GitHub] jeremiedb edited a comment on issue #12428: [R] mx.io.CSVIter not loading labels in version 1.3.0

[GitBox <gi...@apache.org>]

jeremiedb edited a comment on issue #12428: [R] mx.io.CSVIter not loading labels in version 1.3.0
URL: https://github.com/apache/incubator-mxnet/issues/12428#issuecomment-419610774
 
 
   Interesting! Really looks like a bug when the last label axis is set to 1. 
   As a quick turnaround, what about dropping the 1 axis for all data and label in the csv.iter and perform a reshape within the model architecture?
   
   Something like:
   
   ```
   iter <- mx.io.CSVIter(data_csv = "data.csv",
                         data_shape = c(3,3),
                         label_csv = "label.csv",
                         label_shape = c(3,3),
                         batch.size = 2)
   
   data <- mx.symbol.Variable("data")
   data <- mx.symbol.reshape(data, shape = c(3,1,3,0))
   
   label <- mx.symbol.Variable("label")
   label <- mx.symbol.reshape(label, shape = c(3,3,1,0))
   ...
   loss <- mx.symbol.LinearRegressionOutput(data = model, label = label)
   ```

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