Matplotlib imshow: Data rotated?

Question

I was trying to plot some data with scatter. My code is

import matplotlib.pyplot as plt
import matplotlib as mpl
import numpy as np
from scipy.interpolate import         


        

Answer 1

It's not inverted, just flipped. The origin for imshow default to the upper left rather than the lower left. imshow has a parameter to specify the origin, it's named origin. Alternatively you can set the default in your matplotlib.conf.