Show HN: Simple method to create complex Excel formulas If I have trouble visualizing an excel formula in one cell on the fly, I use a trick to make it easier. Let's say I have the following cells | A | B | C | 1|mary| |Jane| In D1 I want to concatenate the cell values if the cell contains text. First I make a formula to check if the cell contains text somewhere in a cell on the sheet. Let us go with A6. A6: =ISTEXT(A1) result=TRUE ; Hooray! Then, if A6 is true, I want to display the text from A1 because I cannot concatenate "true" as I will be doing later on: A7: =IF(A6=true,A1,"") result=mary ; Yippy! I do the same thing for each cell: A8: =ISTEXT(B1) result=FALSE ; Sweet! A9: =IF(A8=true,B1,"") result=blank ; Thank goodness! A10: =ISTEXT(C1) result=TRUE ; Sweet! A11: =IF(A10=true,C1,"") result=jane ; Thank goodness! I know I am going to ultimately combine them with concatenate like so: A12: =CONCATENATE(A7," ",A9," ",A11) result=mary jane Right now it is a mess, but it is easy to follow and create each formula. Now I just copy the formula from the correct cell into the final concatenation (A12) To start, I will replace "A7" in the A12 formula with the formula from A7 minus the "=" sign: A12: =CONCATENATE(IF(A6=true,A1,"")," ",A9," ",A11) result=No change ; Perfect! I continue that process with A9 and A11 in cell A12 formula to get this: A12: =CONCATENATE(IF(A6=1,A1,"")," ",IF(A8=1,B1,"")," ",IF(A10=1,C1,"")) result=No change ; 100% success so far! Now I keep copying the referred cells with formulas(A6, A8, & A10) until I have only the cells with data left(A1, B1, & C1) in the A12 formula: A12: =CONCATENATE(IF(ISTEXT(A1)=1,A1,"")," ",IF(ISTEXT(B1)=1,B1,"")," ",IF(ISTEXT(C1)=1,C1,"")) result=No change ; Phew... Plug that formula from A12 into D1 and it is finished. Using this method, I find it very easy to work out more complex formulas. I wish I had figured this out on day 1. February 19, 2022 at 11:11AM
Show HN: StreetComplete, an OpenStreetMap Editor for Humans StreetComplete is an OpenStreetMap[0] editor directed at people who want to contribute and want to do this using their smartphone, without learning how to edit things[1]. It is available as an Android application. It is intended to be used as one walks, with quests appearing as markers on the map. Selecting a marker allows one to answer a simple question. The answer will be added to the OpenStreetMap database, with app handling selecting objects for editing, transforming answer into OSM tags and making edits. OpenStreetMap account is needed to apply edits, but it is possible to start without it, make some edits and login/register later. Note: I am not the main author, but I am one of the active contributors. Github page is at https://ift.tt/2g8lasH and https://ift.tt/3nR9PzS shows what was recently released. [0]OpenStreetMap is a Wikipedia of maps, available on the open licence. This dataset is already used for many interestin...
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