From 6440f99cdb0be1d99d7c731581abe9287e01b04d Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Tue, 14 Jan 2025 10:47:26 +1100
Subject: [PATCH 1/2] FIX: yf change to labels and using close price

---
 lectures/prob_dist.md | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/lectures/prob_dist.md b/lectures/prob_dist.md
index 14c210c4..4760053a 100644
--- a/lectures/prob_dist.md
+++ b/lectures/prob_dist.md
@@ -4,7 +4,7 @@ jupytext:
     extension: .md
     format_name: myst
     format_version: 0.13
-    jupytext_version: 1.16.1
+    jupytext_version: 1.16.6
 kernelspec:
   display_name: Python 3 (ipykernel)
   language: python
@@ -434,7 +434,7 @@ for μ, σ in zip(μ_vals, σ_vals):
     u = scipy.stats.norm(μ, σ)
     ax.plot(x_grid, u.pdf(x_grid),
     alpha=0.5, lw=2,
-    label=f'$\mu={μ}, \sigma={σ}$')
+    label=rf'$\mu={μ}, \sigma={σ}$')
 ax.set_xlabel('x')
 ax.set_ylabel('PDF')
 plt.legend()
@@ -449,7 +449,7 @@ for μ, σ in zip(μ_vals, σ_vals):
     u = scipy.stats.norm(μ, σ)
     ax.plot(x_grid, u.cdf(x_grid),
     alpha=0.5, lw=2,
-    label=f'$\mu={μ}, \sigma={σ}$')
+    label=rf'$\mu={μ}, \sigma={σ}$')
     ax.set_ylim(0, 1)
 ax.set_xlabel('x')
 ax.set_ylabel('CDF')
@@ -510,7 +510,7 @@ for σ in σ_vals:
     u = scipy.stats.norm(μ, σ)
     ax.plot(x_grid, u.cdf(x_grid),
     alpha=0.5, lw=2,
-    label=f'$\mu={μ}, \sigma={σ}$')
+    label=rf'$\mu={μ}, \sigma={σ}$')
     ax.set_ylim(0, 1)
     ax.set_xlim(0, 3)
 ax.set_xlabel('x')
@@ -554,7 +554,7 @@ for λ in λ_vals:
     u = scipy.stats.expon(scale=1/λ)
     ax.plot(x_grid, u.pdf(x_grid),
     alpha=0.5, lw=2,
-    label=f'$\lambda={λ}$')
+    label=rf'$\lambda={λ}$')
 ax.set_xlabel('x')
 ax.set_ylabel('PDF')
 plt.legend()
@@ -567,7 +567,7 @@ for λ in λ_vals:
     u = scipy.stats.expon(scale=1/λ)
     ax.plot(x_grid, u.cdf(x_grid),
     alpha=0.5, lw=2,
-    label=f'$\lambda={λ}$')
+    label=rf'$\lambda={λ}$')
     ax.set_ylim(0, 1)
 ax.set_xlabel('x')
 ax.set_ylabel('CDF')
@@ -615,7 +615,7 @@ for α, β in zip(α_vals, β_vals):
     u = scipy.stats.beta(α, β)
     ax.plot(x_grid, u.pdf(x_grid),
     alpha=0.5, lw=2,
-    label=fr'$\alpha={α}, \beta={β}$')
+    label=rf'$\alpha={α}, \beta={β}$')
 ax.set_xlabel('x')
 ax.set_ylabel('PDF')
 plt.legend()
@@ -628,7 +628,7 @@ for α, β in zip(α_vals, β_vals):
     u = scipy.stats.beta(α, β)
     ax.plot(x_grid, u.cdf(x_grid),
     alpha=0.5, lw=2,
-    label=fr'$\alpha={α}, \beta={β}$')
+    label=rf'$\alpha={α}, \beta={β}$')
     ax.set_ylim(0, 1)
 ax.set_xlabel('x')
 ax.set_ylabel('CDF')
@@ -675,7 +675,7 @@ for α, β in zip(α_vals, β_vals):
     u = scipy.stats.gamma(α, scale=1/β)
     ax.plot(x_grid, u.pdf(x_grid),
     alpha=0.5, lw=2,
-    label=fr'$\alpha={α}, \beta={β}$')
+    label=rf'$\alpha={α}, \beta={β}$')
 ax.set_xlabel('x')
 ax.set_ylabel('PDF')
 plt.legend()
@@ -688,7 +688,7 @@ for α, β in zip(α_vals, β_vals):
     u = scipy.stats.gamma(α, scale=1/β)
     ax.plot(x_grid, u.cdf(x_grid),
     alpha=0.5, lw=2,
-    label=fr'$\alpha={α}, \beta={β}$')
+    label=rf'$\alpha={α}, \beta={β}$')
     ax.set_ylim(0, 1)
 ax.set_xlabel('x')
 ax.set_ylabel('CDF')
@@ -799,7 +799,7 @@ So we will have one observation for each month.
 :tags: [hide-output]
 
 df = yf.download('AMZN', '2000-1-1', '2024-1-1', interval='1mo')
-prices = df['Adj Close']
+prices = df['Close']
 x_amazon = prices.pct_change()[1:] * 100
 x_amazon.head()
 ```
@@ -876,7 +876,7 @@ For example, let's compare the monthly returns on Amazon shares with the monthly
 :tags: [hide-output]
 
 df = yf.download('COST', '2000-1-1', '2024-1-1', interval='1mo')
-prices = df['Adj Close']
+prices = df['Close']
 x_costco = prices.pct_change()[1:] * 100
 ```
 

From 2d25233ec9cb92b70524bcf2b3f39df65abe79c9 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Tue, 14 Jan 2025 11:31:30 +1100
Subject: [PATCH 2/2] migrate Adj Close to Close

---
 lectures/commod_price.md | 2 +-
 lectures/heavy_tails.md  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lectures/commod_price.md b/lectures/commod_price.md
index efab8144..93654d18 100644
--- a/lectures/commod_price.md
+++ b/lectures/commod_price.md
@@ -60,7 +60,7 @@ The figure below shows the price of cotton in USD since the start of 2016.
 ```{code-cell} ipython3
 :tags: [hide-input, hide-output]
 
-s = yf.download('CT=F', '2016-1-1', '2023-4-1')['Adj Close']
+s = yf.download('CT=F', '2016-1-1', '2023-4-1')['Close']
 ```
 
 ```{code-cell} ipython3
diff --git a/lectures/heavy_tails.md b/lectures/heavy_tails.md
index f5636fcc..854a7597 100644
--- a/lectures/heavy_tails.md
+++ b/lectures/heavy_tails.md
@@ -197,7 +197,7 @@ mystnb:
     caption: Daily Amazon returns
     name: dailyreturns-amzn
 ---
-s = data['Adj Close']
+s = data['Close']
 r = s.pct_change()
 
 fig, ax = plt.subplots()
@@ -229,7 +229,7 @@ mystnb:
     caption: Daily Bitcoin returns
     name: dailyreturns-btc
 ---
-s = data['Adj Close']
+s = data['Close']
 r = s.pct_change()
 
 fig, ax = plt.subplots()