Simple Statistics

Goals

Learn to do linear regressions and t-tests with simulated data.

Skills

• Simulate noisy data with Numpy’s random number generators

• Fit data with Scipy’s linregress function

• Fit data with Numpy’s polyfit function and poly1d object

• Do simple t-tests with Scipy’s ttest_1samp, ttest_ind, and ttest_rel

• Make a plot with Matplotlib’s hist function

• Creating a custom text string using string formatting

Final Product

Linear regression with residuals (2 plots):

(Source code)

(png, hires.png, pdf)

(png, hires.png, pdf)

Simple t-tests and a histogram:

(Source code, png, hires.png, pdf)