Replace tau with t

Author: ian-whitestone

Chapter3_MCMC/Ch3_IntroMCMC_PyMC3.ipynb

@@ -968,7 +968,7 @@
     "\n",
     "### Autocorrelation\n",
     "\n",
-    "Autocorrelation is a measure of how related a series of numbers is with itself. A measurement of 1.0 is perfect positive autocorrelation, 0 no autocorrelation, and -1 is perfect negative correlation.  If you are familiar with standard *correlation*, then autocorrelation is just how correlated a series, $x_\\tau$, at time $t$ is with the series at time $t-k$:\n",
+    "Autocorrelation is a measure of how related a series of numbers is with itself. A measurement of 1.0 is perfect positive autocorrelation, 0 no autocorrelation, and -1 is perfect negative correlation.  If you are familiar with standard *correlation*, then autocorrelation is just how correlated a series, $x_t$, at time $t$ is with the series at time $t-k$:\n",
     "\n",
     "$$R(k) = Corr( x_t, x_{t-k} ) $$\n",
     "\n",
@@ -1411,4 +1411,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}