The TW filters are nowhere as complete or intuitive as Evan's work. Square root anyone?
I made a nutrition tracking app using Evan's tools: http://nutrition-database.tiddlyspot.com/ It uses the nutrition database from the USDA. I was able to track four major nutrients for my own health program. (calories, carbs, fiber, and potassium). I'm not sure if even now it would be possible to do that with TW filters. On Monday, July 27, 2020 at 10:01:59 AM UTC-7, Eric Shulman wrote: > > On Monday, July 27, 2020 at 7:40:30 AM UTC-7, [email protected] wrote: >> >> I've just discovered Formulas and I'm enjoying its straightforward >> crunching. Thank you so much for making this awesome plugin! I'd like to >> make a tiddler that shows the overall "feeling score" of a food logging >> database by counting the number of results for each mood (bad, decent, >> good). Then, I'd find the average of their weighted values: (bad * -1 + >> decent * 1 + good * 2) / totalEntries. >> > > While Evan's FormulaPlugin is very useful (and ground-breaking at the > time), as of TiddlyWiki v5.1.20, the TWCore has math operators built-in as > filters. > https://tiddlywiki.com/#Mathematics%20Operators > > Here's how you might use these built-in operators instead of the > FormulaPlugin... > > For this example, I created a tiddler named "FoodLog" containing the > following: > Choose a month: > <$select field="month"> > <$list filter="January February March April May June July August > September October November December" variable="month"> > <option><<month>></option> > </$list> > </$select> > > <$vars > bad={{{ [tag[FoodLog]tag{!!month}tag[bad]count[]multiply[-1]] }}} > decent={{{ [tag[FoodLog]tag{!!month}tag[decent]count[]multiply[1]] }}} > good={{{ [tag[FoodLog]tag{!!month}tag[good]count[]multiply[2]] }}} > entries={{{ [tag[FoodLog]tag{!!month}count[]] }}}> > > There are <<entries>> items in {{!!month}}, > with an overall feeling score = > <$text text={{{ > [<bad>add<decent>add<good>divide<entries>multiply[1000]trunc[]divide[1000]] > }}}/> > > Good:<br> > <$list filter="[tag[FoodLog]tag{!!month}tag[good]sort[]]" > ><li><<currentTiddler>></li></$list> > Decent:<br> > <$list > filter="[tag[FoodLog]tag{!!month}tag[decent]sort[]]"><li><<currentTiddler>></li></$list> > Bad:<br> > <$list filter="[tag[FoodLog]tag{!!month}tag[bad]sort[]]" > ><li><<currentTiddler>></li></$list> > > Then, I created some test tiddlers with appropriate tags: > "Hotdogs" tags="FoodLog, July, good" > "Ice Cream" tags="FoodLog, July, good" > "Jello" tags="FoodLog, July, decent > "Potato Salad" tags="FoodLog, July, bad" > "Watermelon" tags="FoodLog, July, good" > > The output shown in FoodLog, is: > >> >> *Choose a month: July * > > > > >> *There are 5 items in July, with an overall feeling score = 1.2* > > > > *Good:* >> - *Hotdogs* >> - *Ice Cream* >> - *Watermelon**Decent:* >> - *Jello**Bad:* >> - *Potato Salad* > > > Notes: > * $select gives you a droplist of month names. The selection is stored in > FoodLog, in the "month" field. > * $vars calculates the "bad", "decent", "good", and "entries" values for > the selected month, using the weighted value system you described in your > post. > * The output shows the number of entries for the selected month, followed > by the calculated "feeling score" > * The feeling score is "the average of their weighted values" as you > described in your post, which I rounded to 3 decimal places. > * Following this result are bullet lists showing the individual food > entries, sorted alphabetically, grouped by "good", "decent", and "bad" > > enjoy, > -e > > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/fd24a274-a214-402b-971c-22ffba42a04co%40googlegroups.com.
