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I created a very simple scatter plot using pylab.
pylab.scatter(engineSize, fuelMile)
pylab.show()
The rest of the program isn't worth posting, because it's that line that's giving me the problem. When I change "scatter" to "plot" it graphs the data, but each point is part of a line and that makes the whole things a scribbly mess. I just want points, not a line, but I get this huge error message that ends with:
File "C:\Python26\lib\site-packages\numpy\core\fromnumeric.py", line 1643, in amin
return amin(axis, out)
TypeError: cannot perform reduce with flexible type
325
Scatter plots are similar to line graphs in that they start with mapping quantitative data points. The difference is that with a scatter plot, the decision is made that the individual points should not be connected directly together with a line but, instead express a trend.
Two common issues have been identified with the use of scatter plots – overplotting and the interpretation of causation as correlation. Overplotting occurs when there are too many data points to plot, which results in the overlapping of different data points.
I bet engineSize, fuelMile are stings, try printing them, if that is the case, you have to convert them to float before passing them as arguments to scatter
floatval = float(strval)
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