#244 User created arrays

[Steve Keen]

This is related to the bug report #457--which was intended to be a demo of this desired feature before the bug.

This tool would enable a user to create an array of data within Ravel, rather than having to import data all the time. In the case I was using, I wanted an index dimension (in this case, from index 1 to 50--could starting with 1 instead of 0 have been a cause of the bug?), with a linked data dimension based on a formula.

The formula here was quite simple: each data entry equalled its index value. But this could be a constant, or a square of the index, or some more complex a formula.

I used this array as a pseudo output number for a pseudo firm, but we could have a quadratic formula, or something more complicated, being generated from the array and then used in a model like the one I attached with bug #457.

[High Performance Coder]

I'd say this functionality is already there. To create a vector of values 0..49, create a parameter, and set the init field to "iota(49)". Then you could wire it up to the + operator, and add 1. If you want to square it, feed the parameter to both sides of a * operator.

To do a constant, you can employ 'zero' and 'one' appropriately. See https://minsky.sourceforge.io/manual/minsky/node109.html for more details.

[Steve Keen]

I’ll check it out. And we need something that is easy for neophyte users,
once we go commercial.

Best, Steve
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On Wed, 7 Feb 2024 at 22:52, High Performance Coder hpcoder@users.sourceforge.net wrote:

I'd say this functionality is already there. To create a vector of values
0..49, create a parameter, and set the init field to "iota(49)". Then you
could wire it up to the + operator, and add 1. If you want to square it,
feed the parameter to both sides of a * operator.

To do a constant, you can employ 'zero' and 'one' appropriately. See
https://minsky.sourceforge.io/manual/minsky/node109.html for more details.

---

[features:#244] https://sourceforge.net/p/minsky/features/244/ User
created arrays

Status: open
Milestone: Backlog
Created: Wed Feb 07, 2024 08:12 PM UTC by Steve Keen
Last Updated: Wed Feb 07, 2024 08:12 PM UTC
Owner: nobody

This is related to the bug report #457--which was intended to be a demo of
this desired feature before the bug.

This tool would enable a user to create an array of data within Ravel,
rather than having to import data all the time. In the case I was using, I
wanted an index dimension (in this case, from index 1 to 50--could starting
with 1 instead of 0 have been a cause of the bug?), with a linked data
dimension based on a formula.

The formula here was quite simple: each data entry equalled its index
value. But this could be a constant, or a square of the index, or some more
complex a formula.

I used this array as a pseudo output number for a pseudo firm, but we
could have a quadratic formula, or something more complicated, being
generated from the array and then used in a model like the one I attached
with bug #457.

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