I need to create logger for machine learning debugging. First, I wanted to
perform this string:
(create-logger 10 "Epoch #" :epoch ", Error: " :error)
This code will cause this output while training:
Epoch #10, Error: 2.0
Epoch #20, Error: 1.0
Epoch #30, Error: 0.0
Epoch #40, Error: 0.0
...
I wrote this code:
;; Training logging
(defmulti resolve-logger-keyword (fn [kwd] kwd))
(defmethod resolve-logger-keyword :epoch [_]
(fn [trainer] (.getIteration trainer)))
(defmethod resolve-logger-keyword :error [_]
(fn [trainer] (.getError trainer)))
(defmacro create-log-func [args]
`(fn [trainer#]
(for [arg# ~args]
(if (keyword? arg#)
((resolve-logger-keyword arg#) trainer#)
arg#))))
(defn create-logger [each-n-messages & args]
(let [counter (atom 0)
logger-message (create-log-func args)]
(fn [trainer]
(swap! counter inc)
(when (<= each-n-messages @counter)
(swap! counter (fn [_] 0))
(println (apply str (logger-message trainer)))))))
This code works fine. But now I want this line be possible:
(create-logger 10 "Epoch #" :epoch ", Error: " (* :error -1))
In other words, I want to perform operations over this logger parameters.
It's inside of the logger, so at first I need to make macro create-logger
instead of function.
I try to write this:
(defmacro create-logger [each-n-messages & args]
(let [counter# (atom 0)
logger-message (create-log-func args)]
`(fn [trainer#]
(swap! ~counter# inc)
; These lines are not important yet
; (when (<= ~each-n-messages @~counter)
; (swap! ~counter (fn [_] 0))
; (println (apply str (~logger-message trainer#)))))))
And after trying to execute the first line:
(create-logger 10 "Epoch #" :epoch ", Error: " :error)
I get the error:
clojure.lang.Compiler$CompilerException: java.lang.RuntimeException: Can't
embed object in code, maybe print-dup not defined:
clojure.lang.Atom@501e8e4f,
compiling:(D:\Programming\Clojure\Projects\trade-ai-server\src\trade_ai_server\ai_trader.clj:97:1)
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