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BTW, if you have a range of answers, map it onto range of colors. Don't use blue for no, red for weak yes, and purple for strong yes, because chromatically pur
by pg 16y ago
BTW, if you have a range of answers, map it onto range of colors. Don't use blue for no, red for weak yes, and purple for strong yes, because chromatically purple is between blue and red.
- paulbaumgart 16y agoYeah-- looking from an angle at my laptop screen, at first I confused the "Strongly Agree" and "Strongly Disagree" shades of blue.
- pama 16y agoCheck out the diverging color schemes in: http://colorbrewer2.org/ http://colorbrewer2.org/
- dayjah 16y agoDuly noted - the next set that go out will contrast more.
- neilk 16y agoMaybe I misunderstand you, but I think the point was it would be easier to understand if there was less contrast between adjacent answer groups. Strong Yes should be distinct but similar to Yes, which should be distinct but similar to Neutral, and so on. A stepped gradation between two colors works, or even just tints and tones of the same color. Also, just another minor quibble, could the bars be sorted by some weighted score? So the statements they most agree with pile up on one side. Or, perhaps score by strength of feeling in either direction, so the "important" factors line up on one side.
- jeffcoat 16y agoI needed to solve this problem about 12 years ago: Digging through the scraps of Fortran available on then-much-younger Internet (I may have even resorted to the university library!), I discovered that a standard trick for coloring 1-dimensional data onto a (Red, Green, Blue) color space is to start in ([H]ue, [S]aturation, [V]alue) space, map your data into the H dimension (holding S and V constant), and then transform that into RGB. I have absolutely no expertise in this field at all, but that Worked For Me (and does indeed place purple between blue and red).