TimeLockedMALibrary "TimeLockedMA"
Library & function(s) which generates a moving average that stays locked to users desired time preference.
TODO - Add functionality for more moving average types. IE: smooth, weighted etc...
Example:
time_locked_ma(close, length=1, timeframe='days', type='ema')
Will generate a 1 day exponential moving average that will stay consistent across all chart intervals.
Error Handling
On small time frames with large moving averages (IE: 1min chart with a 50 week moving average), you'll get a study error that says "(function "sma") references too many candles in history" .
To fix this, make sure you have timeframe="" as an indicator() header. Next, in the indicator settings, increase the timeframe from to a higher interval until the error goes away.
By default, it's set to "Chart". Bringing the interval up to 1hr will usually solve the issue.
Furthermore, adding timeframe_gaps=false to your indicator() header will give you an approximation of real-time values.
Misc Info
For time_lock_ma() setting type='na' will return the relative length value that adjusts dynamically to user's chart time interval.
This is good for plugging into other functions where a lookback or length is required. (IE: Bollinger Bands)
time_locked_ma(source, length, timeframe, type) Creates a moving average that is locked to a desired timeframe
Parameters:
source : float, Moving average source
length : int, Moving average length
timeframe : string, Desired timeframe. Use: "minutes", "hours", "days", "weeks", "months", "chart"
type : string, string Moving average type. Use "SMA" (default) or "EMA". Value of "NA" will return relative lookback length.
Returns: moving average that is locked to desired timeframe.
timeframe_convert(t, a, b) Converts timeframe to desired timeframe. From a --> b
Parameters:
t : int, Time interval
a : string, Time period
b : string, Time period to convert to
Returns: Converted timeframe value
chart_time(timeframe_period, timeframe_multiplier) Separates timeframe.period function and returns chart interval and period
Parameters:
timeframe_period : string, timeframe.period
timeframe_multiplier : int, timeframe.multiplier
Enjoy :)
Pinecoders
smfLibrary "smf"
f_strLeft(string, int) Function returning the leftmost `_n` characters in `_str`.
Parameters:
string : _str: source string.
int : _n : number of leftmost characters to return.
f_strRight(string, int) Function returning the rightmost `_n` characters in `_str`.
Parameters:
string : _str: source string.
int : _n : number of rightmost characters to return.
f_strMid(string, int, int) Function returning the substring of `_str` from character position `_from` to `_to` inclusively.
Parameters:
string : _str : source string.
int : _from: left character position. The first character's position is 0.
int : _to : right character position.
f_strLeftOf(string, string) Function returning the sub-string of `_str` to the left of the `_of` separating character.
Parameters:
string : _str: string to separate.
string : _op : separator character.
f_strRightOf(string, string) Function returning the sub-string of `_str` to the right of the `_of` separating character.
Parameters:
string : _str: string to separate.
string : _op : separator character.
f_strCharPos(string, string) Function returning the position of the first occurrence of `_chr` in `_str`, where the first character position is 0. Returns -1 if the character is not found.
Parameters:
string : _str: string to search.
string : _chr: character to search for in `_str`.
f_strReplace(string, int, string) Function that replaces a character at position `_pos` in the `_src` string with the `_str` character or string.
Parameters:
string : _src : source string.
int : _pos : position of character to be replaced. The first character's position is 0.
string : _str : replacement character or string.
f_tickFormat() Function returning a format string usable with `tostring()` to round a value to the symbol's tick precision.
f_tostringPad(float, string) Function returning a string representation of a numeric `_val` using a special `_fmt` string allowing all strings to be of the same width, to help align columns of values.
Parameters:
float : _val: string to separate.
string : _fmt: formatting string similar to those used in the `tostring()` format string, with "?" used to indicate padding,
f_print() Function prints a label on dataset's last bar.
