store - larger data storage for complex item typesLibrary "store"
Object/Property Storage System Semi-Simplified. .
It's a helpful toolset while designing UDT's as it remains flexible,
this helps in not having to remap an entire script while tinkering.
Set an object up, and add as man properties as yyou wish.
a property can be one of any pine built in types. so a single
object can contain sa, ohlc each with a color, a float, an assigned int
and those 4 props each have 3 sub-assigned values.
as in demo, the alternating table object has 2 different tables
it's a pseudo more complex wa to create our own flexible
version of a UDT, but that will not ~break~ on library updates
so you can update awa without fear, as this libb will no change
saving ou the hassle of creating UDT's that continually change.
set(dict, _object, _prop, _item)
Add/Updates item to storage. Autoselects subclass dictionary on set
Parameters:
dict : (dictionary) dict.type subdictionary (req for overload)
_object : (string) object name
_prop
_item : () item to set
Returns: item item wwith column/row
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _object, _prop, _item)
Parameters:
dict
_object
_prop
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
set(dict, _index, _item)
Parameters:
dict
_index
_item
get(typedict, _object, _prop)
Get item by object name and property (string)
Parameters:
typedict : (dict) dict.type subdictionary (req for overload)
_object : (string) object name
_prop
Returns: item from storage
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
get(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _object, _prop)
Remove a specific property from an object
Parameters:
typedict : (dict) dict.type subdictionary (req for overload)
_object : (string) object name
_prop
Returns: item from storage
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _object, _prop)
Parameters:
typedict
_object
_prop
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
remove(typedict, _index)
Parameters:
typedict
_index
delete(_dict, _object)
Remove a complete Object and all props
Parameters:
_dict
_object : (string) object name
Returns: item from storage
delete(_dict, _index)
Parameters:
_dict
_index
wipe(_dict, _object, _prop)
Remove Property slot for all 10 item types
Parameters:
_dict : (dictionary) The full dictionary item
_object : (string) object name
_prop
Returns: item from storage
wipe(_dict, _index)
Parameters:
_dict
_index
init(_Objlim, _Proplim)
Create New Dictionary ready to use (9999 size limit - (_objlim +_Proplim) for row/column 0)
# Full dictionary with all types
> start with this
Parameters:
_Objlim : (int) maximum objects (think horizontal)
_Proplim : (int) maximum properties per obj (vertical)
Returns: dictionary typoe object
boxdict
Fields:
keys
items
booldict
Fields:
keys
items
colordict
Fields:
keys
items
floatdict
Fields:
keys
items
intdict
Fields:
keys
items
labeldict
Fields:
keys
items
linedict
Fields:
keys
items
linefilldict
Fields:
keys
items
stringdict
Fields:
keys
items
tabledict
Fields:
keys
items
dictionary
Fields:
boxs
bools
colors
floats
ints
labels
lines
linefills
strings
tables
keys
item
Fields:
objCol
propRow
object
property
actionItem
dictionaries
Dictionar OF dictionaries
Fields:
dicts
Dictionary
[-_-] DictionaryThe script shows an example implementation of dictionary-like data type which can store key:value pairs (Python style). Both keys and values can have any of the following type:
• string
• integer
• float
• boolean
• color
You can add items of different types to the same dictionary (e.g. key = 12 and value = "value" stored in the same dictionary with key = "key" and value = 0.23).
Under the hood dictionary is a custom Object (see www.tradingview.com), that has two array fields (one for storing keys, another for storing values). Keys and values of different types are converted into a string representation when adding a new item to the dictionary. The value is then converted back to certain type (bool/color/etc.) from that string representation when being retrieved. Script also utilises the new Methods (see www.tradingview.com).
The following methods are implemented:
• init() -> initialises the array fields of dictionary (without this the script throws an error "Array methods can't be called when ID of array is na"
• set(key, value) -> add a new item to dictionary; if an item for given key already exists - change it to new value
• getS(key) -> get value of string type
• getI(key) -> get value of integer type
• getF(key) -> get value of float type
• getB(key) -> get value of boolean type
• getC(key) -> get value of color type
• remove(key) -> removes item from dictionary
• len() -> get length of dictionary (the number of keys)
I could not make just one "get" function that returns any type of value (color/string/etc.), so instead I created a get function for each value type. Example usage:
• you add a string item: dictionary.set(2, "string here")
• you add a float item: dictionary.set(3, 24.56)
• to retrieve first value (key=2) do this: dictionary.getS(2)
• to retrieve second value (key=3) do this: dictionary.getF(3)
StringStringHashmapLibrary "StringStringHashmap"
A simple implementation of a key string-to-string value dictionary in pine script
create_ss_dict()
Create an empty string-string dictionary
Returns: the indices and elements of the dict
add_key_value(key, value, i, e)
Add new key-value pair in the dictionary
Parameters:
key : string
value : string
i : string the indices of the dictionary
e : string the element of the dictionary
get_value(key, i, e)
Get the value of the given key
Parameters:
key : string
i : string the indices of the dictionary
e : string the element of the dictionary
Returns: return the value of the given key
change_value(key, value, i, e)
Change the value of the given key
Parameters:
key : string
value : string
i : string the indices of the dictionary
e : string the element of the dictionary
MiteTricksLibrary "MiteTricks"
Matrix Global Registry.
Get, Set, automatic growing, universal get/set,
multi-matrix dictionaries, multi-dictionary matrixes..
add slice matrixes of any type, share one common global key registry
pull up an item from a category, and item name ie a table of info.
same cell needs a color, a size, a string, a value, etc..
all of which can be pulled up with the same group id, and key id.
just swap which matrix you pull the value from.
this has a side benefit of non-repainting and recalculating
when pulling values, changing inputs..
makes for very fast/clean usage..
benefit :
floats = value
strings = names
lines = drawn items
table =table of data items for this key
colors = color for line/table/fill,label..
all of those can be pulled with "get(_VALUES,_groupIDX,_keyIDX)" where only the values matrix needs be swapped, and the same item/coordinates remains for all the possible matrixes that item appears in.
also useful as a dictionary/registry for any given type of item,,
and goes very handy with floats/strings/colors/bools with my matrixautotable
very helpful when prototyping or doing development work as a shortcut.
initRegistry()
Registry inititalizer
Returns: registry of string matrix type
newbool(optional, optional, optional)
create bool type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is bool (na)
Returns: bool matrix of specified size and fill, or blank 2x2 for registry use
newbox(optional, optional, optional)
create box type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is box (na)
Returns: box matrix of specified size and fill, or blank 2x2 for registry use
newcolor(optional, optional, optional)
create color type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is color (na)
Returns: color matrix of specified size and fill, or blank 2x2 for registry use
newfloat(optional, optional, optional)
create float type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is float (na)
Returns: float matrix of specified size and fill, or blank 2x2 for registry use
newint(optional, optional, optional)
create int type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is int (na)
Returns: int matrix of specified size and fill, or blank 2x2 for registry use
newlabel(optional, optional, optional)
create label type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is label (na)
Returns: label matrix of specified size and fill, or blank 2x2 for registry use
newline(optional, optional, optional)
create line type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is line (na)
Returns: line matrix of specified size and fill, or blank 2x2 for registry use
newlinefill(optional, optional, optional)
create linefill type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is linefill(na)
Returns: linefill matrix of specified size and fill, or blank 2x2 for registry use
newstring(optional, optional, optional)
create string type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is string (na)
Returns: string matrix of specified size and fill, or blank 2x2 for registry use
newtable(optional, optional, optional)
create table type new matrix presized 2x2 for reg
Parameters:
optional: row size
optional: column size
optional: fill value(default is table (na)
Returns: table matrix of specified size and fill, or blank 2x2 for registry use
newfrom(INIT_FILL)
newfrom Matrix full of item input
Parameters:
INIT_FILL: item to fill (2x2) the matri and set type. a type(na) works
addrow(m, v)
addrow Add new row to matrix
Parameters:
m: matrix of type being added to
v: value of type being added to ( best leave NA on string for registry purposes)
addcolumn(matrix, value)
addcolumn
Parameters:
matrix: of type being added to
value: of type being added to ( best leave NA on string for registry purposes)
get(_VALS, _KEYREG, _GROUP, _KEY)
get Grabs value and returns single item
Parameters:
_VALS: Matrix Values slice
_KEYREG: Registry values matrix (strings)
_GROUP: name of group/category or int group key
_KEY: name of item to fetch from value registry or int key id
Returns: item
get(_VALS, _GROUP, _KEY)
get Grabs value and returns single item
Parameters:
_VALS: Matrix Values slice
_GROUP: name of group/category
_KEY: name of item to fetch from value registry
getgid(_KEYREG, _GROUP)
getgid
Parameters:
_KEYREG: Reg to pull group id from
_GROUP: group index int, or string name to get the other missing type
getkid(_KEYREG, _GROUP, _KEY)
getkid
Parameters:
_KEYREG: Reg to pull Key id from
_GROUP: group index int, or string name
_KEY: index of string key id to get it's ID int
getkey(_KEYREG, _GROUP, _KEY)
getkey
Parameters:
_KEYREG: Reg to pull Key id from
_GROUP: group index int, or string name for getting key string
_KEY: index of string key id to get it's match of other type
set(_VALS, _KEYREG, _GROUP, _KEY, _value)
set items to reg and matrix container
Parameters:
_VALS: Values matrix container
_KEYREG: Key registry
_GROUP: (string) Group/Category name
_KEY: (string) Key for item
_value: item
Returns: void
del(_VALS, _KEYREG, _GROUP, _KEY)
del grroup id
Parameters:
_VALS: Matrix Values slice
_KEYREG: Registry values matrix (strings)
_GROUP: name of group/category
_KEY: name of item to Delete from values and key
detached(_GROUP, _KEY, _VALUE)
detached make detached registry/val matrix
Parameters:
_GROUP: Name of first group
_KEY: Name of first item
_VALUE: Item of any type, sets the output type too.
Simple HashmapA very simple Hashmap in Pinescript version 4
It uses two arrays one to store indices and one to store values
currently this only supports keys of type int and values of type floats.
index array: (20, 30, 80, 90)
value array: (9.1,8.1,6.5,3.5)
You can access the value 9.1 by using the key 20.
No fancy hash functions were used just a very simple practical mechanism.
Object: object oriented programming made possible! Hash map's in Pinescript?? Absolutely
This Library is the first step towards bringing a much needed data structure to the Pine Script community.
"Object" allows Pine coders to finally create objects full or unique key:value pairs, which are converted to strings and stored in an array. Data can be stored and accessed using dedicated get and set methods.
The workflow is simple, but has a few nuances:
0. Import this library into your project; you can give it whatever alias you'd like (I'll be using obj)
1. Create your first object using the obj.new() method and assign it a variable or "ID".
2. Use the object's ID as the first argument into the obj.set() method, for the key and value there's one extra step required. They must be added as arguments to the appropriate prop_() method.
Note: While objects in this library technically only store data as strings, any primitive data type can be converted to a string before being stored, meaning that one object can hold data from multiple types at once. There's a trade off though..Pine Script requires that all exported function parameters have pre-defined types, meaning that as convenient as it would be to have a single method for storing and returning data of every type, it's not currently possible. Instead there are functions to add properties for each individual type, which are then converted to strings automatically (the original type is flagged and stored along with the data). Furthermore, since switch/if statements can only return values of the same type, there must also be "get" methods which correspond with each type. Again, a single "get" method which auto-detects the returned value's type was the goal but it's just not currently possible. Instead each get method is only allowed to return a value of its own type. No worries though, all the "get" methods will throw errors if they can't access the data you're trying to access. In that error message, you'll be informed exactly which "get" method you need to use if you ever lose track of what type of data you should be returning.
3. The second argument for obj.set() method is the obj.prop_() method. You just plug in your key as a string and your value and you're done. Easy as that.
Please do not skip this step, properties must be formatted correctly for data to be stored and accessed correctly
4. Obj.get_ (s: string, f: float, b: bool, i: int) methods are even easier, just choose whichever method will return the data type you need, then plug in your ID, and key and that's it. Objects will output data of the same type they were stored as!
There's a short example at the end of the script if you'd like to see more!
prop_string(string: key, string: value)
returns property formatted to string and flagged as string type
prop_float(string: key, float: value)
returns property formatted to string and flagged as float type
prop_bool(string: key, bool: value)
returns property formatted to string and flagged as bool type
prop_int(string: key, int: value)
returns property formatted to string and flagged as int type
Support for lines and shapes coming soon!
new()
returns an empty object
set(string : ID, string: property)
adds new property to object
get_f(string : ID, string: key)
returns float values
get_s(string : ID, string: key)
returns string values
get_b(string : ID, string: key)
returns boolean values
get_i(string : ID, string: key)
returns int values
More methods like Obj.remove(), Obj.size(), Obj.fromString, Obj.fromArray, Obj.toJSON, Obj.keys, & Obj.values coming very soon!!
Dictionary/Object LibraryThis Library is aimed to mitigate the limitation of Pinescript having only one structured data type which is only arrays.
It lacks data types like Dictionaries(in Python) or Object (in JS) that are standard for other languages. Tuples do exist, but it hardly solves any problem.
Working only with Arrays could be overwhelming if your codebase is large. I looked for alternatives to arrays but couldn't find any library.
So I coded it myself and it's been working good for me. So I wanted to share it with you all.
What does it do:
==================
If you are familiar with Python or Javascript, this library tries to immimate Object/Dictonary like structure with Key Value Pairs.
For Example:
object= {name:"John Doe", age: 28 , org: "PineCoders"}
And then it also tries to immitate the Array of Objects (I call it Stack)
like this:
stack= Array({name:"John Doe", age: 28 , org: "PineCoders"},
{name:"Adam Smith", age: 32 , org: "PineCoders"},
{name:"Paragjyoti Deka", age: 25 , org: "PineCoders"})
So there are basically two ideas: Objects and Stacks.
But it looks whole different in Pinescript for obvious reasons.
Limitation:
The major limitation I couldn't overcome was that, for all of the values: both input and return values for properties will be of string type.
This is due to the limiation of Pinecsript that there is no way to return a value on a if-else statement dynamically with different data types.
And as the input data type must be explicitly defined when exporting the library functions, only string inputs are allowed.
Now that doesn't mean you won't be able to use integer, float or boolens, you just need to pass the string value for it using str.tostring() method.
And the output for the getter functions will be in strings as well. But I have added some type conversion methods that you could use from this library itself.
From String to Float, String To Integer and String to Boolean: these three methods are included in this library.
So basically the whole library is based on a manipulatiion of Array of strings under the hood.
///////////////
Usage
///////////////
Import the library using this statement:
import paragjyoti2012/STR_Dict_Lib/4 as DictLib
Objects
First define an object using this method:
for eample:
object1= DictLib.init("name=John,age=26,org=")
This is similar to
object1= {name:"John",age:"26", org:""} in JS or Python
Just like we did here in for "org", you can set initital value to "". But remember to pass string values, even for a numerical properties, like here in "age".
You can use "age="+str.tostring(age). If you find it tedious, you can always add properties later on using .set() method.
So it could also be initiated like this
object= DictLib.init("name=John")
and later on
DictLib.set(object1,"age", str.toString(age))
DictLib.set(object1,"org", "PineCoders")
The getter function looks like this
age= DictLib.get(object1,"age")
name=DictLib.get(object1,"name")
The first argument for all methods .get, .set, and .remove is the pointer (name of the object).
///////////////////////////
Array Of Objects (Stacks)
///////////////////////////
As I mentioned earlier, I call the array of objects as Stack.
Here's how to initialize a Stack.
stack= DictLib.initStack(object1)
The .initStack() method takes an object pointer as argument. It simply converts the array into a string and pushes it into the newly created stack.
Rest of all the methods for Stacks, takes the stack pointer as it's first arument.
For example:
DictLib.pushStack(stack,object2)
The second argument here is the object pointer. It adds the object to it's stack. Although it might feel like a two dimentional array, it's actually an one dimentional array with string values.
Under the hood, it looks like this
////////////////////
Methods
////////////////////
For Objects
-------------------
init() : Initializes the object.
params: (string) e.g
returns: The object ( )
example:
object1=DictLib.init("name=John,age=26,org=")
...................
get() : Returns the value for given property
params: (string object_pointer, string property)
returns: string
example:
age= DictLib.get(object1,"age")
.......................
set() : Adds a new property or updates an existing property
params: (string object_pointer, string property, string value)
returns: void
example:
DictLib.set(object1,"age", str.tostring(29))
........................
remove() : Removes a property from the object
params : (string object_pointer, string property)
returns: void
example:
DictLib.set(object1,"org")
........................
For Array Of Objects (Stacks)
-------------------------------
initStack() : Initializes the stack.
params: (string object_pointer) e.g
returns: The Stack
example:
stack= DictLib.initStack(object1)
...................
pushToStack() : Adds an object at at last index of the stack
params: (string stack_pointer, string object_pointer)
returns: void
example:
DictLib.pushToStack(stack,object2)
.......................
popFromStack() : Removes the last object from the stack
params: (string stack_pointer)
returns: void
example:
DictLib.popFromStack(stack)
.......................
insertToStack() : Adds an object at at the given index of the stack
params: (string stack_pointer, string object_pointer, int index)
returns: void
example:
DictLib.insertToStack(stack,object3,1)
.......................
removeFromStack() : Removes the object from the given index of the stack
params: (string stack_pointer, int index)
returns: void
example:
DictLib.removeFromStack(stack,2)
.......................
getElement () : Returns the value for given property from an object in the stack (index must be given)
params: (string stack_pointer, int index, string property)
returns: string
example:
ageFromObject1= DictLib.getElement(stack,0,"age")
.......................
setElement() : Updates an existing property of an object in the stack (index must be given)
params: (string stack_pointer, int index, string property, string value)
returns: void
example:
DictLib.setElement(stack,0,"age", str.tostring(32))
........................
includesElement() : Checks if any object exists in the stack with the given property-value pair
params : (string stack_pointer, string property, string value)
returns : Boolean
example:
doesExist= DictLib.includesElement(stack,"org","PineCoders")
........................
searchStack() : Search for a property-value pair in the stack and returns it's index
params: (stringp stack_pointer, string property, string value)
returns: int (-1 if doesn't exist)
example:
index= DictLib.searchElement(stack,"org","PineCoders")
///////////////////////
Type Conversion Methods
///////////////////////
strToFloat() : Converts String value to Float
params: (string value)
returns: float
example:
floatVal= DictLib.strToFloat("57.96")
.............................
strToInt() : Converts String value to Integer
params: (string value)
returns: int
example:
intVal= DictLib.strToFloat("45")
.............................
strToBool() : Converts String value to Boolean
params: (string value)
returns: boolean
example:
boolVal= DictLib.strToBool("true")
.............................
Points to remember
...............
1. Always pass string values as arguments.
2. The return values will be of type string, so convert them before to avoid typecasting conflict.
3. Horses can't vomit.
More Informations
====================
Yes, You can store this objects and stacks for persisting through the iterations of a script across successive bars.
You just need to set the variable using "var" keyword. Remember this objects and stacks are just arrays,
so any methods and properties an array have it pinescript, would be applicable for objects and stacks.
It can also be used in security functions without any issues for MTF Analysis.
If you have any suggestions or feedback, please comment on the thread, I would surely be happy to help.