Jump to content

Welcome to the new Traders Laboratory! Please bear with us as we finish the migration over the next few days. If you find any issues, want to leave feedback, get in touch with us, or offer suggestions please post to the Support forum here.

  • Welcome Guests

    Welcome. You are currently viewing the forum as a guest which does not give you access to all the great features at Traders Laboratory such as interacting with members, access to all forums, downloading attachments, and eligibility to win free giveaways. Registration is fast, simple and absolutely free. Create a FREE Traders Laboratory account here.

andypap

Arrays Question

Recommended Posts

hi

 

does anybody knows how to assign the value of the last element of each column in an array in the first element of the following column:

array:myarray[9,n](0);

myarray[0,1]=myarray[9,0];

myarray[0,2]=myarray[9,1] etc till n i reached,and have the loop initiating the values assigned in myarray 0 column continuing the loop for the following columns essentially starting from last element of previous column which now is the first element in current column?

also is it possible to sum the values in an array row?

Share this post


Link to post
Share on other sites

andypap, Please rephrase your question. Maybe do a 3 element representative example of all the loops and ops you want performed...thx

Share this post


Link to post
Share on other sites

I always use this method in planning my codes:

 

1. write out ONE action at a time

2. write out ONE action per sentence

 

if you can do that, maybe I can help.

Share this post


Link to post
Share on other sites

a simple for n = 1 to i loop should do what you require. If you need to manipulate rows and elements use nested loops (n = 1 to I and m = 1 to j:). To accumulate sums simply add the elements to a variable within the loop. As others have said I am not sure precisely what you want to do but loops will do it for you. You should be able to use the modulus function if you need an element to 'wrap round'. e.g. for n = 1 to 20 a[n] = a[mod(n+7)] shifts all elements back 9 places and wraps the first 7 elements to the end of the array.

Share this post


Link to post
Share on other sites

thanks for the responses guys,i will try to exlpain more in detail.

i am quite new in el and its hard for me to understand everything at once so i need an actual example of the code lines..

here is what i try to accomplish:

 

array:myarray[9,n](0);

if the value assigned to myarray[9,0] through this loop is the close[10]

 

for value1=0 to 9 begin

myarray[value1,0]=close[value1];end;

 

then

i want to "reloop" in a manner that second column first element will pick up where last element of previous column was so the result will be:

myarray[0,1]=myarray[9,0][1];=close[11]

myarray[0,2]=myarray[9,1][1];=close[21]

my array[0,3]=myarray[9,2][1];=close[31] etc till n is reached.

essentialy this will carry the loop to jump to the first element of the following column as if it was " myarray[10,0]"etc.

 

then i want to be able to acces the values of anyrow number from

column 0 to column N in manner that i can sum

myarray[9,0]+myarray[9,1]+myarray[9,2] ....to n/N..

voila IF N=14 this is the 15min moving average of the close in one min chart if 1 min is the source data for the array.

its something similar to compressseries indicator in various software.

Edited by andypap

Share this post


Link to post
Share on other sites

If you want to fill the array from the first element and once it gets to the last one then go back to the beginning again something like will do it.

 

 

Array[ Round(barnum/7,0) , mod(barnum,7) ] = close; // Fills a 7X7 array.

 

 

to sum the last N elements/closes

 

sum = sum + close - close[n]

 

This will be unstable until you have N bars

 

These will do the there stuff as data arrives.

 

 

To to loop through the array to get the sum (again 7*7) rather than store it as it arrives.

 

for n = 0 to 7-1 begin

for m = 0 to 7-1 begin

sum = sum + Array[n,m];

end;

end;

 

Still not sure exactly what you are up to but hopefully if you look at the ideas behind the above you should get a few yourself.

Share this post


Link to post
Share on other sites

thanks blowfish.. the nested loop gave me a solution.

first i did a dynamic array and set maxlen to 390 via an input:seieslen(390);

 

then i used an if condition before the nested loop:

 

if .....then

for n=0 to serieslen-1 begin

myarray[n]=close[n];

for m=o to serieslen-1 begin

myarray[m]=myarray[n][m];

end;end;

plot1(myarray[serieslen-1];

that did the job of storing the values every 390 bars starting from current bar backwards,

if applyied to 1 min chart it gives you the close of last 1min bar of day and the first 389 have a value of zero.so if you sum the 390 bars what you get is the closing value of the last bar.if you sum 5*390 bars you have a 5 day mov average builded from 1 min bars.

so the indicator is working ok.

 

i am thinking though that this doesnt answer my second question of a more general form..

is it possible and how in EL to access the values of a row in a two dimension array of 7 columns lets say ( 0 to 6) in a manner as if they where the elements of a column?

i will try to make this visible

if the row is 10 of array:myarray[10,6];

then imagine these row elements accumulated as if they look like a column

 

array[10,0]

array[10,1]

array[10,2]

array[10,3]

 

down to

 

array[10,6]

 

thanks again

Share this post


Link to post
Share on other sites

Not really sure what you are trying doing but something similar to

 

sum = 0

for n = 0 to 6 sum = sum+array[10,n]

 

would do the job.

 

Or are you trying to rotate the array?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Topics

  • Posts

    • Back in the early 2000s, Netflix mailed DVDs to subscribers.   It wasn’t sexy—but it was smart. No late fees. No driving to Blockbuster.   People subscribed because they were lazy. Investors bought the stock because they realized everyone else is lazy too.   Those who saw the future in that red envelope? They could’ve caught a 10,000%+ move.   Another story…   Back in the mid-2000s, Amazon launched Prime.   It wasn’t flashy—but it was fast.   Free two-day shipping. No minimums. No hassle.   People subscribed because they were impatient. Investors bought the stock because they realized everyone hates waiting.   Those who saw the future in that speedy little yellow button? They could’ve caught another 10,000%+ move.   Finally…   Back in 2011, Bitcoin was trading under $10.   It wasn’t regulated—but it worked.   No bank. No middleman. Just wallet to wallet.   People used it to send money. Investors bought it because they saw the potential.   Those who saw something glimmering in that strange orange coin? They could’ve caught a 100,000%+ move.   The people who made those calls weren’t fortune tellers. They just noticed something simple before others did.   A better way. A quiet shift. A small edge. An asymmetric bet.   The red envelope fixed late fees. The yellow button fixed waiting. The orange coin gave billions a choice.   Of course, these types of gains are rare. And they happen only once in a blue moon. That’s exactly why it’s important to notice when the conditions start to look familiar.   Not after the move. Not once it's on CNBC. But in the quiet build-up— before the surface breaks.   Enter the Blue Button Please read more here: https://altucherconfidential.com/posts/netflix-amazon-bitcoin-blue  Profits from free accurate cryptos signals: https://www.predictmag.com/ 
    • What These Attacks Look Like There are several ways you could get hacked. And the threats compound by the day.   Here’s a quick rundown:   Phishing: Fake emails from your “bank.” Click the link, give your password—game over.   Ransomware: Malware that locks your files and demands crypto. Pay up, or it’s gone.   DDoS: Overwhelm a website with traffic until it crashes. Like 10,000 bots blocking the door. Often used by nations.   Man-in-the-Middle: Hackers intercept your messages on public WiFi and read or change them.   Social Engineering: Hackers pose as IT or drop infected USB drives labeled “Payroll.”   You don’t need to be “important” to be a target.   You just need to be online.   What You Can Do (Without Buying a Bunker) You don’t have to be tech-savvy.   You just need to stop being low-hanging fruit.   Here’s how:   Use a YubiKey (physical passkey device) or Authenticator app – Ditch text message 2FA. SIM swaps are real. Hackers often have people on the inside at telecom companies.   Use a password manager (with Yubikey) – One unique password per account. Stop using your dog’s name.   Update your devices – Those annoying updates patch real security holes. Use them.   Back up your files – If ransomware hits, you don’t want your important documents held hostage.   Avoid public WiFi for sensitive stuff – Or use a VPN.   Think before you click – Emails that feel “urgent” are often fake. Go to the websites manually for confirmation.   Consider Starlink in case the internet goes down – I think it’s time for me to make the leap. Don’t Panic. Prepare. (Then Invest.)   I spent an hour in that basement bar reading about cyberattacks—and watching real-world systems fall apart like dominos.   The internet going down used to be an inconvenience. Now, it’s a warning.   Cyberwar isn’t coming. It’s here.   And the next time your internet goes out, it might not just be your router.   Don’t panic. Prepare.   And maybe keep a backup plan in your back pocket. Like a local basement bar with good bourbon—and working WiFi.   As usual, we’re on the lookout for more opportunities in cybersecurity. Stay tuned.   Author: Chris Campbell (AltucherConfidential) Profits from free accurate cryptos signals: https://www.predictmag.com/   
    • DUMBSHELL:  re the automation of corruption ---  200,000 "Science Papers" in academic journal database PubMed may have been AI-generated with errors, hallucinations and false sourcing 
    • Does any crypto exchanges get banned in your country? How's about other as Bybit, Kraken, MEXC, OKX?
    • Does any crypto exchanges get banned in your country? How's about other as Bybit, Kraken, MEXC, OKX?
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.