From e20b60f659b08c46b9da0591ee489803f3f3d300 Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Tue, 4 Aug 2015 15:51:53 +0800
Subject: ...

---
 nerv/layer/softmax.lua | 31 +++++++++++++++++++++++++++++++
 nerv/nerv              | 10 +++++-----
 2 files changed, 36 insertions(+), 5 deletions(-)
 create mode 100644 nerv/layer/softmax.lua

diff --git a/nerv/layer/softmax.lua b/nerv/layer/softmax.lua
new file mode 100644
index 0000000..e979ebf
--- /dev/null
+++ b/nerv/layer/softmax.lua
@@ -0,0 +1,31 @@
+local SoftmaxLayer = nerv.class("nerv.SoftmaxLayer", "nerv.Layer")
+
+function SoftmaxLayer:__init(id, global_conf, layer_conf)
+    self.id = id
+    self.gconf = global_conf
+    self.dim_in = layer_conf.dim_in
+    self.dim_out = layer_conf.dim_out
+    self:check_dim_len(1, 1) -- two inputs: nn output and label
+end
+
+function SoftmaxLayer:init(batch_size)
+    if self.dim_in[1] ~= self.dim_out[1] then
+        nerv.error("mismatching dimensions of input and output")
+    end
+end
+
+function SoftmaxLayer:update(bp_err, input, output)
+    -- no params, therefore do nothing
+end
+
+function SoftmaxLayer:propagate(input, output)
+    output[1]:softmax(input[1])
+end
+
+function SoftmaxLayer:back_propagate(bp_err, next_bp_err, input, output)
+    nerv.error_method_not_implemented()
+end
+
+function SoftmaxLayer:get_params()
+    return nerv.ParamRepo({})
+end
diff --git a/nerv/nerv b/nerv/nerv
index e5943aa..7571659 100644
--- a/nerv/nerv
+++ b/nerv/nerv
@@ -1,13 +1,13 @@
 #! /usr/bin/env luajit
 require 'nerv'
 print("Greetings")
-if #args < 1 then
+if #arg < 1 then
     return
 end
-local script = args[1]
+local script = arg[1]
 local script_arg = {}
-for i = 2, #args do
-    table.insert(script_arg, args[i])
+for i = 2, #arg do
+    table.insert(script_arg, arg[i])
 end
-args = script_arg
+arg = script_arg
 dofile(script)
-- 
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