pyramid | An operator precedence parser based on the “ Precedence
kandi X-RAY | pyramid Summary
kandi X-RAY | pyramid Summary
An operator precedence parser based on the “Precedence climbing” algorithm written in PHP
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Top functions reviewed by kandi - BETA
- Parse Ternary tokens .
- Tokenize string .
- Get the ternary operator .
- Returns the operand for the given token .
- Get If Code
- Adds an operand .
- Evaluate the node
- Get the code .
- Get field value
- Get the list of all identifiers .
pyramid Key Features
pyramid Examples and Code Snippets
Community Discussions
Trending Discussions on pyramid
QUESTION
Is there another way to print right angled pyramid in javascript without adding a line at the end of the display?
...ANSWER
Answered 2021-Jun-10 at 08:50You could move the adding of new line with a condition by using a logical AND &&
with str
.
If str
is an empty string it adds the emtpty string to str
,
If not empty, it takes the next expression with the new line.
QUESTION
My strategy looks like this:
...ANSWER
Answered 2021-Jun-08 at 18:13Every time your buy_signal
variable became true, barssince()
would return zero, so now we use the bar count from the previous bar.
We added something for your longStop
variable because it was missing. Keep in mind this is the stop-buy level, as well as debugging plots at the end:
QUESTION
I was watching my friend try to solve a programming challenge and at one point, his code looked like this:
...ANSWER
Answered 2021-Jun-04 at 04:21input.length()
returns an unsigned value (size_t
). This results in k
being promoted (converted) to an unsigned value, and then comparison is made.
When k
is -1, it will be promoted to an Very Large Positive Number, which will not be less than the string length.
However, even before this happens, you access input[-1]
, which results in undefined behavior (possibilities include a crash, display of a garbage value, or the program appearing to work properly).
QUESTION
I use DirectX Toolkit to display a 3d model, following the 'Rendering the model' and my pyramid is displayed:
When trying to transform the object, the scaling and rotation work well but I'm not sure how to move the object (translate) around. Basically I'm looking for an algorithm that determines, given the current camera position, focus, viewport and the rendered model (which the DirectX toolkit gives me the bounding box so it's "size") the minimum and maximum values for XYZ translation so the object remains visible.
The bounding box is always the same, no matter the view port size, so how do I compare it's size against my viewport?
Please excuse my newbiness, I'm not a 3D developer, at least yet.
The "Simple Rendering" example which draws a triangle:
...ANSWER
Answered 2021-Jun-03 at 23:54TL:DR: To move your model around the world, create a matrix for the translation and set it as the world matrix with SetWorld
.
QUESTION
I have two questions:
- I wanna replace
redCandlesCounter
with barssince, because it looks better. The thing is when I do that:if (barssince(not isCandleGreen and close > middleBand and open < upperBand) > 2 and isLong)
kinda breaks the logic by selling on the next candle, which is not what I want. By the way, the tests were done on GTO/USDT (Binance) 30m interval, pictures are at 30 Mar '21 18:30.
- A sexier way to replace
isCandleGreen = close > open
?
ANSWER
Answered 2021-Apr-15 at 14:15I guess, you can try to use barssince like this:
QUESTION
for example of '31415926535897
', should be applying the rule of 1 2 2 3 3 3
which can be shown like (3) (1 + 4) (1 + 5) (9 + 2 + 6) (5 + 3 + 5) (8 + 9 + 7)
which results,
ANSWER
Answered 2021-May-31 at 17:33You could use itertools.groupby
, it transforms [1, 2, 2, 3, 3, 3]
into {1:[1], 2:[2,2], 3:[3,3,3]}
, then use to slice the input for sum
QUESTION
I am trying to simulate a relatively basic trading strat but unfortunately my attempts aren't working.
In essence, when there is a red candle, you buy whenever the next candle close is above that red candle's high. This buy price is constantly shifting to the next lower high as the next red candle makes a close beneath the original red candle's low. Any movement inside the candle's low and high is therefore ignored. After an entry is made, you then sell whenever the next candle is below the low of the candle you purchased at. This again continuously shift up as new and higher green candles are made.
...ANSWER
Answered 2021-Jun-01 at 03:32I think this should accomplish what you are trying to do. Instead of structuring the way you have, I've tracked whether you are in a long or not. Keep in mind orders are executed on the open of the next bar from the signal. Green arrows represent the bar where the condition to enter occurred, the red x where the condition was met to close the position.
We use barstate.isconfirmed
to check the conditions right on the closing of the current bar. To keep it cleaner, I've separated the logic from the entry/close commands by using bool variables enter_long
and exit_long
. We can then also use these boolean variables to plotshape()
to visually check the logic. If you have additional conditions you want to add later you can either use the same bool to flip the one entry command or have multiple different bools for each type of entry condition ie enter_x_long
or enter_y_long
etc. When things inevitably don't work as planned having plotshape()
mapping out your different conditions will make it a lot easier to debug.
It can also be helpful when coding these kinds of things to plot your levels like candlehigh to debug.
QUESTION
I'm trying to accomplish trade direction (Long/Short/Both) in study mode, just like LucF and PineCoders did here.
Issues:- When I select "Longs Only", I expect it to show only long trades, but it doesn't due to the missing the part which finds the range of the candles in the long trade. If you check the link I gave above (Backtesting & Trading Engine [PineCoders]), LucF uses InLong, InShort, InTrade variables. The problem is that his code is older and too overengineered for me and I don't get the idea on how to recreate it.
I said overengineered, because his code includes pyramiding, slippage and other stuff that are now built-in TradingView, probably because back in 2019, PineScript didn't have such features.
The actual idea behind that indicator is to plot alerts and another script which backtests it using that indicator as a source.
- The bar coloring part is not working and it is currently commented, so the code can compile. The problem is the same as above's description. I need to know whether I'm in a long trade direction or short or not in a trade at all. I don't know how to accomplish that part.
ANSWER
Answered 2021-May-31 at 16:13This will get you started. We:
- Follow the states of shorts/longs, which makes it possible to plot stop and entry levels only when we are in a trade.
- Made the
doLongs/doShorts
inputs part of the entry conditions. - Added the breach of stops to the exit conditions.
Note that this logic does not replicate that of the Engine, as here you are entering on closes, whereas the Engine is entering on the next bar following the detection of the entry/exit conditions, which is more realistic. You can also adapt your code to proceed that way:
QUESTION
I'd like to plot a population pyramid chart with plotly. I would like to have My output seems totally wrong. I couldn't find a working solution after much research. Help is much appreciated.
My code:
...ANSWER
Answered 2021-May-27 at 11:11Use negative numbers to place bars to the left. Adjust the axis tick labels.
QUESTION
Define a function named print_pyramid(number_of_rows) which takes an integer as a parameter and prints a specific pyramid pattern using numbers. Note: you may assume that the number of rows will always be > 1 and < 10 and you must use a nested for loop.
For example:
Above is my question and what I need to get, but I am unsure on how to complete it below is my code attempt and my result. This is my code:
...ANSWER
Answered 2021-May-25 at 00:45here is a list comprehension that uses a for loop to generate the pyramid pattern
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install pyramid
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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