I'm trying with not much success to overlay a Gaussian to a histogram.
I have two dataframes, one (d) with only x columns for the histogram and another (gauss) with x and y with the Gaussian coordinates.
If I do the following it fails, probably because it still links to the first dataframe...
p = ggplot(aes(x = 'values'), data = d)
p += geom_histogram(binwidth = 0.01, color = 'black')
p += xlim(0, 1)
p += geom_line(aes(x = 'x', y = 'y'), data = gauss)
print(p)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/ggplot/ggplot.py", line 116, in __repr__
self.make()
File "/usr/local/lib/python2.7/dist-packages/ggplot/ggplot.py", line 636, in make
layer.plot(ax, facetgroup, self._aes, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/ggplot/geoms/geom_line.py", line 33, in plot
(data, _aes) = self._update_data(data, _aes)
File "/usr/local/lib/python2.7/dist-packages/ggplot/geoms/geom.py", line 43, in _update_data
data = _aes._evaluate_expressions(self.params['data'])
File "/usr/local/lib/python2.7/dist-packages/ggplot/aes.py", line 110, in _evaluate_expressions
raise Exception(msg)
Exception: Invalid column: 'values'
did you mean one of the following:
I'm trying with not much success to overlay a Gaussian to a histogram. I have two dataframes, one (d) with only x columns for the histogram and another (gauss) with x and y with the Gaussian coordinates.
If I do the following it fails, probably because it still links to the first dataframe...