org-plotting with date as the independent variable

["David O'Toole" <dto1138@gmail.com>]

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I'm having trouble with org-plotting data that is captured on certain dates
over time, like my bodyweight. My table looks like this, but the plotting
seems to be very wrong:

#+PLOT: ind:1 timefmt:"%Y-%m-%d" with:points
|       Date | Weight |
|------------+--------|
| 2008-09-26 |    266 |
| 2008-10-08 |    261 |
| 2008-10-16 |    263 |
| 2008-10-19 |    259 |
| 2009-05-20 |    272 |
| 2009-06-12 |    274 |
| 2009-06-23 |    275 |

I've attached the incorrect image.

Also how can I plot the totals from a bunch of separate tables as the
dependent variable? Each of the tables would be like the following below:

| Time | Description            | Calories |
|------+------------------------+----------|
| 6:00 | Whey shake, 2 scoops   |      200 |
|      | + 2 cups skim milk     |      180 |
| 9:30 | 4 egg whites           |      120 |
|      | + 2 slices salami      |      200 |
|      | + 1 slice cheese       |      110 |
|      | Whey shake, 2 scoops   |      200 |
|      | + 2 cups skim milk     |      180 |
|      | light yogurt           |       60 |
|      | rice cake              |       40 |
|      | + 2 tbsp peanut butter |      200 |
|------+------------------------+----------|
|      | TOTAL                  |     1490 |
#+TBLFM: @12$3=vsum(@2$3..@11$3)

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