计算Spearmanr系数时遇TypeError：numpy.float64对象不可调用

Hey there! Let's figure out why you're hitting this error and get your Spearman correlation calculation working smoothly.

What's Going Wrong? #

That error pops up because you've accidentally overwritten the spearmanr function (I'm guessing you imported it from scipy.stats) with a numpy float variable that has the exact same name. When you try to run spearmanr(drat, carb), Python thinks you're trying to treat a plain number like a function—which doesn't make sense, hence the "not callable" message.

How to Fix It #

Here's what you need to do:

• Hunt for variable name conflicts
  Scroll back through your code to see if you have a line like this somewhere before the calculation:

  spearmanr = some_float_value  # This replaces the function with a number!
  

  If you find it, rename that variable to something unique—like spearmanr_prev or my_spearman_score.

• Re-import the function (if needed)
  If you've already overwritten the function in your current notebook/session, re-import it to get the original function reference back:

  from scipy.stats import spearmanr
  

• Run your original code again
  Now your calculation should work without issues:

  drat = cars['drat']
  carb = cars['carb']
  spearmanr_coefficient, p_value = spearmanr(drat, carb)
  print('spearman is %0.3f' % (spearmanr_coefficient))
  

A Quick Example of the Conflict #

Let's say you had this line earlier in your code:

# Oops! This overwrites the spearmanr function
spearmanr = 0.621

When you later try to call spearmanr(drat, carb), Python sees spearmanr as the float 0.621 instead of the function you intended to use—hence the TypeError.

内容的提问来源于stack exchange，提问作者Josh Bennett