FX Trading for >1 pair

[julianaddison]

Hi, I've been trying the Forex example. I can run it for one forex pair (GBPUSD) using 1M candlestick intervals but have trouble running it for 2 forex pairs (GBPUSD and EURUSD).

There's a matrix multiplication issue when I try training the model with 2 or more forex pairs:
`
/usr/local/lib/python3.10/dist-packages/torch/nn/modules/linear.py in forward(self, input)
112
113 def forward(self, input: Tensor) -> Tensor:
--> 114 return F.linear(input, self.weight, self.bias)
115
116 def extra_repr(self) -> str:

RuntimeError: mat1 and mat2 shapes cannot be multiplied (5x34 and 33x64)
`

I'm unsure if this is a data preparation issue. I first processed GBPUSD and EURUSD separately into CSVs, and merged them into one CSV. Each CSV then contains 1M candlestick data and engineered features for one day for both forex pairs GBPUSD and EURUSD. Note the symbol columns refers to GBPUSD and EURUSD as GBPUSD=X and EURUSD=X respectively - also accounted for this in the config file. Attached a file as an example.

forex_2023_1.csv

Do you have any idea what might be the issue?