Topic on User talk:Yurik

Hello again, Yurik

Is possible to have a time frame for the data? Some times there exists a distant value, and the inclusion of this value, because of the interpolation creates a false impression of population stability. E.g. see the graph in https://el.wikipedia.org/wiki/%CE%A7%CF%81%CE%B9%CF%83%CF%84%CE%B9%CE%B1%CE%BD%CE%BF%CF%8D%CF%80%CE%BF%CE%BB%CE%B7_%CE%9C%CE%B5%CF%83%CF%83%CE%B7%CE%BD%CE%AF%CE%B1%CF%82 . There is a 150+ years gap from the first value (1689) to the next (1844), during which time, the population certainly wasn't stable (major events happened that had heavy impact in the population:e.g. unsuccesfull greek revolution in 1770, greek war of independence 1821, etc.). It would be more accurate and useful from an encyclopedic point of view to have the choice to frame the graph in a certain time, e.g. >1840, intstead of projecting values for 150 years, or removing a sourced value from the distant past. Is this possible?

Thank you in advance

Hi, how would you want to display it in that case?

Well I would like to exclude the first value and have the graph starting at 1844, without having to copy the data in commons (https://commons.wikimedia.org/wiki/Data:Wikidata/%CE%A7%CF%81%CE%B9%CF%83%CF%84%CE%B9%CE%B1%CE%BD%CE%BF%CF%8D%CF%80%CE%BF%CE%BB%CE%B7_%CE%9C%CE%B5%CF%83%CF%83%CE%B7%CE%BD%CE%AF%CE%B1%CF%82.tab

E.g. I'd like if possible, the graph to work like this {Graph:Population history|Q=..........|from=1800|to=1900} with "from" and "to" to be optional

Done - use the new "filter" expression (much more powerful than simple from/to) -- e.g. filter=datum.year >= 1800 && datum.year < 1900

Thank you very much!