Paging Mr. Edward Tufte!
January 12, 2014 8:31 AM Subscribe
If anyone would like to do calculations for the other bars, here is the graphic I used to measure them.
posted by Wulfhere at 9:06 AM on January 12, 2014
posted by Wulfhere at 9:06 AM on January 12, 2014
For starters I'm going to guess that the typo factor of this chart is "the last column was supposed to read 6,91%".
posted by ook at 9:08 AM on January 12, 2014
posted by ook at 9:08 AM on January 12, 2014
For starters I'm going to guess that the typo factor of this chart is "the last column was supposed to read 6,91%".
I think the typo was in the data entry rather than the labeling of the 2013 value, as Brazil's 2013 inflation has been reported at 5.91%.
Perhaps that was unintentional. And sometimes, not showing a zero line on a bar chart is an innocent mistake. But allowing for those errors, the line labeled "4,5%" is either mislabeled or misplaced. Looks more like it is located at around 4.8% on the vertical axis.
Here's an article including a better chart of inflation in Brazil, with a longer-term context. The article explains that "The government considers prices within two percentage points of 4.5% to be within its target." An honest charting of that target area would produce a very broad horizontal stripe encompassing all the values.
posted by Snerd at 9:49 AM on January 12, 2014
I think the typo was in the data entry rather than the labeling of the 2013 value, as Brazil's 2013 inflation has been reported at 5.91%.
Perhaps that was unintentional. And sometimes, not showing a zero line on a bar chart is an innocent mistake. But allowing for those errors, the line labeled "4,5%" is either mislabeled or misplaced. Looks more like it is located at around 4.8% on the vertical axis.
Here's an article including a better chart of inflation in Brazil, with a longer-term context. The article explains that "The government considers prices within two percentage points of 4.5% to be within its target." An honest charting of that target area would produce a very broad horizontal stripe encompassing all the values.
posted by Snerd at 9:49 AM on January 12, 2014
This thread is closed to new comments.
I'm not an expert, but an initial calculation based on the formulas on your link would be:
The lowest bar in the graph measures 0.45 units, and the tallest bar measures 2.31 units.
Then, the size of effect in graphic is: (2.31-0.45)/0.45 = 4.13
Meanwhile the size of the effect in the data is: (5.91-4.31)/4.31 = 0.37
Then the Lie Factor would be: 4.13/0.37 = 11.16
posted by Wulfhere at 9:00 AM on January 12, 2014