diff options
| -rw-r--r-- | data_analysis/02_numpy_stats.ipyml | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/data_analysis/02_numpy_stats.ipyml b/data_analysis/02_numpy_stats.ipyml index 9a6d60a..50190be 100644 --- a/data_analysis/02_numpy_stats.ipyml +++ b/data_analysis/02_numpy_stats.ipyml @@ -266,11 +266,15 @@ cells: slide_type: slide - code: | + plt.hist(data, bins=50, normed=True, cumulative=True); + +- code: | data = np.random.poisson(lam=0.5, size=10000) ax1 = plt.subplot(1, 2, 1) + plt.ylabel('PDF') ax1.hist(data, normed=True) ax2 = plt.subplot(1, 2, 2) - ax2.hist(data, cumulative=True); + ax2.hist(data, cumulative=True, normed=True); metadata: slideshow: @@ -306,9 +310,9 @@ cells: - code: | data = np.random.chisquare(7, size=10000) ax1 = plt.subplot(1, 2, 1) - ax1.hist(data, normed=True) + ax1.hist(data, bins=50, normed=True) ax2 = plt.subplot(1, 2, 2) - ax2.hist(data, cumulative=True); + ax2.hist(data, bins=50, normed=True, cumulative=True); @@ -367,9 +371,9 @@ cells: ## Some useful tools - For computational work - - `np.shuffle` - - `np.permutation` - - `np.choice` + - `np.random.shuffle` + - `np.random.permutation` + - `np.random.choice` metadata: slideshow: @@ -384,13 +388,13 @@ cells: slide_type: fragment - code: | - np.shuffle(data) + np.random.shuffle(data) - code: | - np.permutation(10) + np.random.permutation(10) - code: | - np.permutation(data) + np.random.permutation(data) - code: | @@ -408,21 +412,21 @@ cells: slide_type: fragment - code: | - np.choice(data, size=5) + np.random.choice(data, size=5) metadata: slideshow: slide_type: fragment - code: | - np.choice(data, size=10) + np.random.choice(data, size=10) metadata: slideshow: slide_type: fragment - code: | - np.choice(data, size=4, replace=False) + np.random.choice(data, size=4, replace=False) metadata: slideshow: @@ -430,7 +434,7 @@ cells: - code: | # Won't work! - np.choice(data, size=10, replace=False) + np.random.choice(data, size=10, replace=False) - markdown: | |