Valanza – my Unix way for weight tracking and anlysis

by lallero317 • 6 months ago

29 12 6 months ago

hilti• 6 months ago

Love your approach: small, composable programs working together through pipes!

criticas• 6 months ago

Nice idea, but "small composable programs" includes R scripts? That's great if you're already using R, a bit much to install if you're not.

You could simplify things by cribbing from the Hacker's Diet (https://www.fourmilab.ch/hackdiet/) and using an exponentially weighted moving average as your filter. 10% of today's weight + 90% yesterday's EWMA. That's almost a one-liner in awk or perl, or a simple function in bash.

Copilot suggests: awk 'BEGIN{alpha=0.1} NF>=2 { date=$1; w=$2; if (NR==1) ewma=w; else ewma=alpha*w + (1-alpha)*ewma; printf "%s\t%g\t%.6f\n", date, w, ewma }' input.txt

dooglius• 6 months ago

I don't think "small" has ever been meant to include the runtime. Is R much more complex of a runtime than awk perl or bash?

ablob• 6 months ago

For the giggles:

nice idea, but "small composable programs" includes perl scripts? That's great if you're already using perl, a bit much to install if you're not.

There shouldn't be any burden of portability for the one writing small tools like these. You're free to rewrite it, of course, but expecting someone to go out of their way to stay within the unix/posix/whatever environment seems a bit much given the context of an unpaid endeavor.

lallero3173• 6 months ago

That's literally what that lp1.awk does. The R script just fills the gaps in data by interpolating.

Thanks for the link

erikgahner• 6 months ago

Great stuff! You can make minor adjustments to the R-script so you do not need to rely on {dplyr} and {tidyr}. For example, use merge() instead of left_join() and use the base pipe, |>, instead of the magrittr pipe, %>%.

lallero3173• 6 months ago

Thanks. Just pushed. (I had never used R before).

MisterTea• 6 months ago

A friend did similar using rc on Plan 9: https://shithub.us/rodri/rcfitness/HEAD/info.html

lallero3173• 6 months ago

Awesome, I needed this: I was going to implement something similar.

Always been a big 9fan (not unintentionally there is a valanza.rc :P).

notorandit2• 6 months ago

Note. In southern Italian lingos, "valanza" means "scale".

renewiltord• 6 months ago

Same root as valence surely

notorandit2• 6 months ago

Italian is "bilancia" (same root as balance).

Valanza – my Unix way for weight tracking and anlysis

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