Hi Ihor & the List
GnuPlot is a great software. If you feel confortable with it, continue
using it! If others are used to R or Python, that is fine too.
Orgtbl-fit may be useful if:
* - You want a pure Emacs process, without external dependencies.
* - You know that Emacs-Calc can fit your data, but you are not
familiar with it.
* - Your data is already available as an Org Mode table.
* - You don't want to write a script (just point at the target column
and type M-x orgtbl-fit, that's all).
Actually, orgtbl-fit is a bridge between Org Mode tables and Calc.
By the way, Org Mode table spreadsheet capabilities are also a bridge
with Calc.
Examples & documentation can be read here:
https://github.com/tbanel/orgtblfit/blob/main/README.org
Have fun!
On 1/24/23 20:55, Ihor Radchenko wrote:
tbanelwebmin <tbanelweb...@free.fr> writes:
The new orgtbl-fit package has just been released on Melpa. It
does regression fitting on Org Mode tables.
Example. We suspect that `obs' depends on `x' and `y'.
...
Let us put the cursor on the `obs' column, and type
M-x orgtbl-fit
Two columns are added
- predicted obs column
- difference between obs and predicted
| x | y | obs | Best Fit | Fit Diff |
|----+---+------+----------+----------|
| 32 | 7 | 38.3 | 38.2 | -0.1 |
| 18 | 3 | 11.4 | 11.6 | 0.2 |
| 43 | 9 | 47.3 | 47.2 | -0.1 |
| 11 | 2 | 8.9 | 8.7 | -0.2 |
| 35 | 8 | 45.1 | 45.3 | 0.2 |
#+TBLFM: $4=-0.289267886829 - 1.06613976706*$1 + 10.3668885192*$2;
%.1f::$5=$4-$3; %.1f
Are there situations when this package is actually useful for data
analysis? (I am usually using gnuplot for fitting)