Price trend of a product on a graph

hello everyone :grin:
I wanted to create an app where the user enters the name of the product for example: Milk and shows the price graph of the product which is updated daily by the community. I don't know how to start
Can anyone help me?:hugs:
thanks :wave:

I'll make a clarification
I wanted to create an app where users can both view and update
the user can search for a product in the search bar for example: Milk
and the app shows the price trend graph
the user can also update the price
I tried with tiny db but I don't know how to make the graph read tiny db
Thanks to anyone who will help me🤗

please can someone answer me I need it
thanks

You appear to have the product, the button and the graph.

Show your relevant blocks and how you fetch and set your data.

See links 3 and 4

hi TIMAI2
that was just a sketch to show you how I wanted to make the app
there are no blocks

Look up linear regression in the forum. The tool will give you the equation of a straight line that "passes" thru all points, sort of, in an average way. If you extend the line appropriately you will get sn (average) prediction.
Here's an example

So I'll make a clarification
I wanted to create an app where users can both view and update
the user can search for a product in the search bar for example: Milk
and the app shows the price trend graph
the user can also update the price
I tried with tiny db but I don't know how to make the graph read tiny db
Thanks to anyone who will help me🤗

Thanks but I don't understand what it has to do with it sorry

Thanks for the links but I didn't understand almost anything. I made a clarification above

See Bluetooth Client Polling Rate - #12 by ABG


Screenshot of how I would like the app

Thanks so much, I'll try now

Can someone help me please?
Pricetrend.aia (94.8 KB)
Thanks

Pricetrend1.aia (95.3 KB)


This is embarrasing.

The TinyDB data feed does not work as documented.

Here is a work around

I had to restrict the price data feed to number only, and to move that Euro symbol to the Label.Text.

I added a date picker, with Day of Month as the x axis.
That let me enter back data to prove the line works.

This should get you started.

Thanks so much
It works perfectly
It really help me thanks
Bye!:wave:

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