From 4f4ffb61a2098af613dd99594bb0263030654eff Mon Sep 17 00:00:00 2001
From: olli <olli@gabosh.net>
Date: Fri, 20 Oct 2023 17:43:11 +0200
Subject: [PATCH] find range and calculate levels based on fibonacci
 retracements

---
 dabo/functions/get_range.sh | 55 +++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 dabo/functions/get_range.sh

diff --git a/dabo/functions/get_range.sh b/dabo/functions/get_range.sh
new file mode 100644
index 0000000..87782ce
--- /dev/null
+++ b/dabo/functions/get_range.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+#. /etc/bash/gaboshlib.include
+
+function get_range {
+  g_echo_note "RUNNING FUNCTION ${FUNCNAME} $@"
+  # get histfile
+  local f_hist_file="$1"
+   
+  # find constant range in defined periods
+  local f_test_periods=1000
+
+  # go reverse through periods and look for range
+  for f_test_period in $(seq 1 ${f_test_periods})
+  do
+    # get average from period to now
+    local f_rangeaverage=$(tail -n${f_test_period} "${f_hist_file}" | cut -d, -f2 | grep "^[0-9]" | awk '{ sum += $1; n++ } END { OFMT = "%2.8f"; if (n > 0) print sum / n; }')
+    # get old price from period
+    local f_period_price=$(tail -n${f_test_period} "${f_hist_file}" | cut -d, -f2 | grep "^[0-9]" | head -n1)
+    # get percentage diff from old price and last average
+    local f_period_price_diff=$(g_percentage-diff ${f_period_price} ${f_rangeaverage} | sed 's/^-//; s/\..*$//')
+    # if percentage change is larger then 2% to the average we have an new price range
+    local f_range_periods=${f_test_period}
+    if [ ${f_period_price_diff} -gt 2 ]
+    then
+      break
+    fi
+  done
+
+  # get highest, lowest and current price in period
+  local f_highest_in_range=$(tail -n${f_range_periods} "${f_hist_file}" | cut -d, -f2 | grep "^[0-9]" | sort -n | tail -n1)
+  local f_lowest_in_range=$(tail -n${f_range_periods} "${f_hist_file}" | cut -d, -f2 | grep "^[0-9]" | sort -n | head -n1)
+  local f_current_price=$(tail -n1 "${f_hist_file}" | cut -d, -f2 | grep "^[0-9]" | head -n1)
+
+  # calculate Pivot Point (PP)
+  local f_pivot_point=$(echo "scale=8; (${f_highest_in_range}+${f_lowest_in_range}+${f_current_price})/3" | bc | sed 's/^\./0./;')
+
+  # calculate support/resist and golden pocket
+  local f_support1=$(echo "scale=8; ${f_pivot_point}-((${f_highest_in_range}-${f_lowest_in_range})*0.382)" | bc | sed 's/^\./0./;' )
+  local f_resist1=$(echo "scale=8; ${f_pivot_point}+((${f_highest_in_range}-${f_lowest_in_range})*0.382)" | bc | sed 's/^\./0./;' )
+  local f_golden_pocket_support=$(echo "scale=8; ${f_pivot_point}-((${f_highest_in_range}-${f_lowest_in_range})*0.618)" | bc | sed 's/^\./0./;' )
+  local f_golden_pocket_resist=$(echo "scale=8; ${f_pivot_point}+((${f_highest_in_range}-${f_lowest_in_range})*0.618)" | bc | sed 's/^\./0./;' )
+  local f_golden_pocket65_support=$(echo "scale=8; ${f_pivot_point}-((${f_highest_in_range}-${f_lowest_in_range})*0.65)" | bc | sed 's/^\./0./;' )
+  local f_golden_pocket65_resist=$(echo "scale=8; ${f_pivot_point}+((${f_highest_in_range}-${f_lowest_in_range})*0.65)" | bc | sed 's/^\./0./;' )
+  local f_support3=$(echo "scale=8; ${f_pivot_point}-((${f_highest_in_range}-${f_lowest_in_range})*1)" | bc | sed 's/^\./0./;' )
+  local f_resist3=$(echo "scale=8; ${f_pivot_point}+((${f_highest_in_range}-${f_lowest_in_range})*1)" | bc | sed 's/^\./0./;' )
+ 
+  # write down in history 
+  echo -n "${f_range_periods},${f_lowest_in_range},${f_highest_in_range},${f_pivot_point},${f_support1},${f_resist1},${f_golden_pocket_support},${f_golden_pocket_resist},${f_golden_pocket65_support},${f_golden_pocket65_resist},${f_support3},${f_resist3}" >>"${f_hist_file}"
+  
+}
+
+#get_range /home/docker/dabo-bitpanda.ds9.dedyn.io/data/botdata/asset-histories/SHIBEUR.history.csv
+
+