{"id":14259,"date":"2024-01-04T15:32:24","date_gmt":"2024-01-04T12:02:24","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85\/"},"modified":"2024-01-04T15:32:24","modified_gmt":"2024-01-04T12:02:24","slug":"%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85\/","title":{"rendered":"\u0686\u06af\u0648\u0646\u0647 NaN \u0647\u0627 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 DataFrame \u067e\u0627\u0646\u062f\u0627 \u067e\u0631 \u06a9\u0646\u06cc\u0645"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85\/#fillna_%e2%80%93_%d9%85%d9%82%d8%af%d8%a7%d8%b1_%d8%ab%d8%a7%d8%a8%d8%aa\" >fillna() &#8211; \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85\/#fillna_%e2%80%93_%d9%be%d8%b1_%da%a9%d8%b1%d8%af%d9%86_%d8%a8%d9%87_%d8%ac%d9%84%d9%88_%d9%88_%d8%b9%d9%82%d8%a8\" >fillna() &#8211; \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u062c\u0644\u0648 \u0648 \u0639\u0642\u0628<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%da%86%da%af%d9%88%d9%86%d9%87-nan-%d9%87%d8%a7-%d8%b1%d8%a7-%d8%af%d8%b1-%db%8c%da%a9-dataframe-%d9%be%d8%a7%d9%86%d8%af%d8%a7-%d9%be%d8%b1-%da%a9%d9%86%db%8c%d9%85\/#interpolate\" >interpolate()<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div><noscript><\/noscript><\/p>\n<p>\u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0647 \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u0646\u062f \u0648 \u06cc\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062e\u0637\u0627\u06cc \u0627\u0646\u0633\u0627\u0646\u06cc\u060c \u062e\u0637\u0627\u06cc \u0627\u0628\u0632\u0627\u0631\u060c \u067e\u0631\u062f\u0627\u0632\u0634 \u0627\u0632 \u06cc\u06a9 \u062a\u06cc\u0645 \u062f\u06cc\u06af\u0631 \u06cc\u0627 \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0641\u0642\u0637 \u06a9\u0645\u0628\u0648\u062f \u062f\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0627\u0635 \u0631\u062e \u0645\u06cc \u062f\u0647\u0646\u062f.<\/p>\n<blockquote>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0628\u0627\u06cc\u062a\u060c \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0631\u0648\u0634 \u067e\u0631 \u06a9\u0631\u062f\u0646 NaNs \u062f\u0631 a \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u0634\u062a <code>DataFrame<\/code>\u060c \u0627\u06af\u0631 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f NaN \u0647\u0627 \u0631\u0627 \u0628\u0627 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646\u0647\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n<\/blockquote>\n<p>\u0627\u0648\u0644 \u0627\u0632 \u0647\u0645\u0647\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u06cc\u06a9 \u0645\u0627\u06a9\u062a \u0628\u0633\u0627\u0632\u06cc\u0645 <code>DataFrame<\/code> \u0628\u0627 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0635\u0627\u062f\u0641\u06cc \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\narray = np.random.randn(<span class=\"hljs-number\">25<\/span>, <span class=\"hljs-number\">3<\/span>)\nmask = np.random.choice((<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">0<\/span>), array.shape, p=(<span class=\"hljs-number\">.3<\/span>, <span class=\"hljs-number\">.7<\/span>)).astype(<span class=\"hljs-built_in\">bool<\/span>)\narray(mask) = np.nan\n\ndf = pd.DataFrame(array, columns=(<span class=\"hljs-string\">'Col1'<\/span>, <span class=\"hljs-string\">'Col2'<\/span>, <span class=\"hljs-string\">'Col3'<\/span>))\n<\/code><\/pre>\n<pre><code class=\"hljs\">        Col1      Col2      Col3 \n0  -0.671603 -0.792415  0.783922\n1   0.207720       NaN  0.996131\n2  -0.892115 -1.282333       NaN\n3  -0.315598 -2.371529 -1.959646\n4        NaN       NaN -0.584636\n5   0.314736 -0.692732 -0.303951\n6   0.355121       NaN       NaN\n7        NaN -1.900148  1.230828\n8  -1.795468  0.490953       NaN\n9  -0.678491 -0.087815       NaN\n10  0.755714  0.550589 -0.702019\n11  0.951908 -0.529933  0.344544\n12       NaN  0.075340 -0.187669\n13       NaN  0.314342 -0.936066\n14       NaN  1.293355  0.098964\n<\/code><\/pre>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0645\u062b\u0644\u0627\u064b \u0633\u062a\u0648\u0646 \u0633\u0648\u0645 \u0631\u0627 \u0631\u0633\u0645 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\">plt.plot(df(<span class=\"hljs-string\">'Col3'<\/span>))\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-3.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0627 \u062a\u06a9\u0646\u06cc\u06a9 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u067e\u0631 \u0645\u06cc \u0634\u0648\u062f &#8211; \u0627\u06cc\u0646 \u0646\u0645\u0648\u062f\u0627\u0631 \u067e\u0631 \u0627\u0632 NaN \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-0.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u062c\u062f\u06cc\u062f \u067e\u0631 \u06a9\u0646\u06cc\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0633\u062a\u0648\u0646\u06cc \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u067e\u0631 \u06a9\u0646\u06cc\u062f \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f \u06cc\u0627 \u062f\u0631 \u0645\u062d\u0644 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>inplace<\/code> \u0628\u062d\u062b \u0648 \u062c\u062f\u0644.  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627\u060c \u0628\u0631\u0627\u06cc \u0633\u0647\u0648\u0644\u062a \u0628\u0627\u0632\u0631\u0633\u06cc\u060c \u0645\u0642\u0627\u062f\u06cc\u0631 \u067e\u0631 \u0634\u062f\u0647 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0645\u06cc \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\">mean = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(df(<span class=\"hljs-string\">'Col3'<\/span>).mean(), inplace=<span class=\"hljs-literal\">False<\/span>)\nmedian = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(df(<span class=\"hljs-string\">'Col3'<\/span>).median(), inplace=<span class=\"hljs-literal\">False<\/span>)\nmode = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(df(<span class=\"hljs-string\">'Col3'<\/span>).mode(), inplace=<span class=\"hljs-literal\">False<\/span>)\n<\/code><\/pre>\n<p>\u0645\u06cc\u0627\u0646\u0647\u060c \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0648 \u062d\u0627\u0644\u062a \u0633\u062a\u0648\u0646 \u0647\u0633\u062a\u0646\u062f <code>-0.187669<\/code>\u060c <code>-0.110873<\/code> \u0648 <code>0.000000<\/code> \u0648 \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0628\u0631\u0627\u06cc \u0647\u0631 NaN \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.  \u0627\u06cc\u0646 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0648\u062b\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062b\u0627\u0628\u062a \u067e\u0631 \u0645\u06cc \u0634\u0648\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0642\u062f\u0627\u0631 \u0648\u0631\u0648\u062f\u06cc \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u0631\u0648\u06cc \u06a9\u0644 \u0633\u062a\u0648\u0646<\/p>\n<p>\u0627\u0648\u0644\u060c \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u06cc\u0627\u0646\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-4.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-5.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062d\u0627\u0644\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-6.png\" alt=\"\" title=\"\"><\/p>\n<h2 id=\"fillnaconstantvalue\"><span class=\"ez-toc-section\" id=\"fillna_%e2%80%93_%d9%85%d9%82%d8%af%d8%a7%d8%b1_%d8%ab%d8%a7%d8%a8%d8%aa\"><\/span>fillna() &#8211; \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u062c\u0627\u06cc \u0622\u0646 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a \u0631\u0627 \u067e\u0631 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\">constant = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(<span class=\"hljs-number\">0<\/span>, inplace=<span class=\"hljs-literal\">False<\/span>\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0628\u0627\u0639\u062b \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a (0) \u0628\u0647 \u062c\u0627\u06cc \u0647\u0631 NaN \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f. <code>0<\/code> \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u0645\u06cc\u0627\u0646\u0647 \u0648 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u0627 \u0648 \u0628\u0631\u0627\u0628\u0631 \u0628\u0627 \u062d\u0627\u0644\u062a \u0627\u0633\u062a\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u067e\u0631 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0633\u0627\u062e\u062a\u06af\u06cc \u0645\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0634\u0628\u06cc\u0647 \u0628\u0647 \u0622\u0646 \u0631\u0648\u0634 \u062e\u0648\u0627\u0647\u0646\u062f \u0628\u0648\u062f:<\/p>\n<pre><code class=\"hljs\">0     0.783922\n1     0.996131\n2     0.000000\n3    -1.959646\n4    -0.584636\n5    -0.303951\n6     0.000000\n7     1.230828\n8     0.000000\n9     0.000000\n10   -0.702019\n11    0.344544\n12   -0.187669\n13   -0.936066\n14    0.098964\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-7.png\" alt=\"\" title=\"\"><\/p>\n<h2 id=\"fillnaforwardandbackwardfill\"><span class=\"ez-toc-section\" id=\"fillna_%e2%80%93_%d9%be%d8%b1_%da%a9%d8%b1%d8%af%d9%86_%d8%a8%d9%87_%d8%ac%d9%84%d9%88_%d9%88_%d8%b9%d9%82%d8%a8\"><\/span>fillna() &#8211; \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u062c\u0644\u0648 \u0648 \u0639\u0642\u0628<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0647\u0631 \u0631\u062f\u06cc\u0641 &#8211; \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u062c\u0644\u0648 \u06cc\u0627 \u0639\u0642\u0628 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f \u0648 \u0645\u0642\u062f\u0627\u0631 \u0631\u0627 \u0627\u0632 \u0631\u062f\u06cc\u0641 \u0642\u0628\u0644 \u06cc\u0627 \u0628\u0639\u062f \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\">ffill = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(method=<span class=\"hljs-string\">'ffill'<\/span>)\nbfill = df(<span class=\"hljs-string\">'Col3'<\/span>).fillna(method=<span class=\"hljs-string\">'bfill'<\/span>)\n<\/code><\/pre>\n<p>\u0628\u0627 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0631\u0648 \u0628\u0647 \u062c\u0644\u0648\u060c \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0627 \u0627\u0632 \u0631\u062f\u06cc\u0641 2 \u063a\u0627\u06cc\u0628 \u0647\u0633\u062a\u06cc\u0645 &#8211; \u0645\u0642\u062f\u0627\u0631 \u0631\u062f\u06cc\u0641 1 \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0631\u062f\u06cc\u0641 \u062f\u0648\u0645 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0645\u0642\u0627\u062f\u06cc\u0631 \u0628\u0647 \u062c\u0644\u0648 \u0645\u0646\u062a\u0634\u0631 \u0645\u06cc \u0634\u0648\u0646\u062f:<\/p>\n<pre><code class=\"hljs\">0     0.783922\n1     0.996131\n2     0.996131\n3    -1.959646\n4    -0.584636\n5    -0.303951\n6    -0.303951\n7     1.230828\n8     1.230828\n9     1.230828\n10   -0.702019\n11    0.344544\n12   -0.187669\n13   -0.936066\n14    0.098964\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-8.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0628\u0627 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0628\u0647 \u0639\u0642\u0628\u060c \u0628\u0631\u0639\u06a9\u0633 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc \u0627\u0641\u062a\u062f.  \u0631\u062f\u06cc\u0641 2 \u0628\u0627 \u0645\u0642\u062f\u0627\u0631 \u0631\u062f\u06cc\u0641 3 \u067e\u0631 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<pre><code class=\"hljs\">0     0.783922\n1     0.996131\n2    -1.959646\n3    -1.959646\n4    -0.584636\n5    -0.303951\n6     1.230828\n7     1.230828\n8    -0.702019\n9    -0.702019\n10   -0.702019\n11    0.344544\n12   -0.187669\n13   -0.936066\n14    0.098964\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-9.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0647\u0631 \u0686\u0646\u062f\u060c \u0627\u06af\u0631 \u0628\u06cc\u0634 \u0627\u0632 \u06cc\u06a9 \u0648\u062c\u0648\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f <code>NaN<\/code> \u062f\u0631 \u06cc\u06a9 \u062a\u0648\u0627\u0644\u06cc &#8211; \u0627\u06cc\u0646\u0647\u0627 \u062e\u0648\u0628 \u0639\u0645\u0644 \u0646\u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f NaN \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0633\u0645\u062a \u067e\u0627\u06cc\u06cc\u0646 \u062a\u0631 \u0622\u0628\u0634\u0627\u0631 \u06a9\u0646\u0646\u062f\u060c \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0645\u0646\u062d\u0631\u0641 \u06a9\u0631\u062f\u0647 \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0648\u0627\u0642\u0639\u06cc \u062b\u0628\u062a \u0634\u062f\u0647 \u0631\u0627 \u062d\u0630\u0641 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<h2 id=\"interpolate\"><span class=\"ez-toc-section\" id=\"interpolate\"><\/span>interpolate()<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 <code>interpolate()<\/code> \u0631\u0648\u0634 \u062f\u0631\u0648\u0646\u06cc\u0627\u0628\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0647 SciPy \u0648\u0627\u06af\u0630\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f <a rel=\"nofollow noopener noreferrer\" target=\"_blank\" href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/interpolate.html\">\u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u06cc \u0627\u0632 \u0631\u0648\u0634 \u0647\u0627 \u0628\u0631\u0627\u06cc \u062f\u0631\u0648\u0646\u06cc\u0627\u0628\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631<\/a>.  \u0627\u0633\u062a\u062f\u0644\u0627\u0644 \u0647\u0627\u06cc \u0645\u062a\u0646\u0648\u0639\u06cc \u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f\u060c \u0627\u0632 \u062c\u0645\u0644\u0647: <code>nearest<\/code>\u060c <code>zero<\/code>\u060c <code>slinear<\/code>\u060c <code>quadratic<\/code>\u060c <code>cubic<\/code>\u060c <code>spline<\/code>\u060c <code>barycentric<\/code>\u060c <code>polynomial<\/code>\u060c <code>krogh<\/code>\u060c <code>piecewise_polynomial<\/code>\u060c <code>spline<\/code>\u060c <code>pchip<\/code>\u060c <code>akima<\/code>\u060c <code>cubicspline<\/code>\u060c \u0648 \u063a\u06cc\u0631\u0647.<\/p>\n<blockquote>\n<p>\u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631\u062a\u0631 \u0648 &#8220;\u0647\u0648\u0634\u0645\u0646\u062f\u0627\u0646\u0647&#8221; \u062a\u0631 \u0627\u0632 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0628\u0627 \u062b\u0627\u0628\u062a \u06cc\u0627 \u0646\u06cc\u0645 \u0645\u062a\u063a\u06cc\u0631 \u0645\u0627\u0646\u0646\u062f \u0631\u0648\u0634 \u0647\u0627\u06cc \u0642\u0628\u0644\u06cc \u0627\u0633\u062a.<\/p>\n<\/blockquote>\n<p>\u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u06cc\u06a9 \u062f\u0646\u0628\u0627\u0644\u0647 \u0631\u0627 \u0628\u0647 \u06af\u0648\u0646\u0647 \u0627\u06cc \u067e\u0631 \u06a9\u0646\u062f \u06a9\u0647 \u0647\u06cc\u0686 \u0631\u0648\u0634 \u062f\u06cc\u06af\u0631\u06cc \u0642\u0627\u062f\u0631 \u0628\u0647 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0646\u06cc\u0633\u062a\u060c \u0645\u0627\u0646\u0646\u062f:<\/p>\n<pre><code class=\"hljs\">s = pd.Series((<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">1<\/span>, np.nan, np.nan, np.nan, <span class=\"hljs-number\">5<\/span>))\ns.fillna(s.mean()).values\n\ns.fillna(method=<span class=\"hljs-string\">'ffill'<\/span>).values\n\ns.interpolate().values\n\n<\/code><\/pre>\n<p>\u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc \u067e\u06cc\u0634 \u0641\u0631\u0636 \u062e\u0637\u06cc \u0627\u0633\u062a \u0648 \u0628\u0627 \u0627\u06cc\u0646 \u0641\u0631\u0636 <code>1...5<\/code> \u0628\u0647 \u0627\u062d\u062a\u0645\u0627\u0644 \u0632\u06cc\u0627\u062f a <code>1, 2, 3, 4, 5<\/code> \u062a\u0648\u0627\u0644\u06cc \u062f\u0648\u0631 \u0627\u0632 \u0630\u0647\u0646 \u0646\u06cc\u0633\u062a (\u0627\u0645\u0627 \u062a\u0636\u0645\u06cc\u0646 \u0634\u062f\u0647 \u0646\u06cc\u0633\u062a).  \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0647\u0645 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u062f\u0627\u0626\u0645\u06cc \u0648 \u0647\u0645 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0631\u0648 \u0628\u0647 \u062c\u0644\u0648 \u06cc\u0627 \u0639\u0642\u0628 \u0628\u0647 \u0637\u0631\u0632 \u0628\u062f\u06cc \u0634\u06a9\u0633\u062a \u0645\u06cc \u062e\u0648\u0631\u0646\u062f.  \u0628\u0647 \u0637\u0648\u0631 \u06a9\u0644\u06cc &#8211; \u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u062f\u0648\u0633\u062a \u062e\u0648\u0628\u06cc \u0628\u0631\u0627\u06cc \u067e\u0631 \u06a9\u0631\u062f\u0646 NaN \u0647\u0627 \u062f\u0631 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0647\u0627\u06cc \u067e\u0631 \u0633\u0631 \u0648 \u0635\u062f\u0627 \u06cc\u0627 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062e\u0631\u0627\u0628 \u0627\u0633\u062a.<\/p>\n<p>\u0622\u0632\u0645\u0627\u06cc\u0634 \u0628\u0627 \u0627\u0646\u0648\u0627\u0639 \u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0646\u062a\u0627\u06cc\u062c \u0628\u0647\u062a\u0631\u06cc \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u062f\u0648 \u0631\u0648\u0634 \u062f\u0631\u0648\u0646 \u06cc\u0627\u0628\u06cc (<code>splice<\/code> \u0648 <code>polynomial<\/code> \u0646\u06cc\u0627\u0632 \u0628\u0647 \u06cc\u06a9 <code>order<\/code> \u0628\u062d\u062b \u0648 \u062c\u062f\u0644):<\/p>\n<pre><code class=\"hljs\">nearest = df(<span class=\"hljs-string\">'Col3'<\/span>).interpolate(method=<span class=\"hljs-string\">'nearest'<\/span>)\npolynomial = df(<span class=\"hljs-string\">'Col3'<\/span>).interpolate(method=<span class=\"hljs-string\">'polynomial'<\/span>, order=<span class=\"hljs-number\">3<\/span>)\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646\u0647\u0627 \u0645\u0646\u062c\u0631 \u0628\u0647:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-10.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0648:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/how-to-fill-nans-in-a-pandas-dataframe-11.png\" alt=\"\" title=\"\">\n<\/div>\n<p><script>\n                        !function(f,b,e,v,n,t,s)\n                        {if(f.fbq)return;n=f.fbq=function(){n.callMethod?\n                        n.callMethod.apply(n,arguments):n.queue.push(arguments)};\n                        if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';\n                        n.queue=();t=b.createElement(e);t.async=!0;\n                        t.src=v;s=b.getElementsByTagName(e)(0);\n                        s.parentNode.insertBefore(t,s)}(window, document,'script',\n                        'https:\/\/connect.facebook.net\/en_US\/fbevents.js');\n                        fbq('init', '525232124909042');\n                        fbq('track', 'PageView');\n                    <\/script>    (\u0628\u0631\u0686\u0633\u0628\u200c\u0647\u0627 \u0628\u0647 \u062a\u0631\u062c\u0645\u0647)# python<br \/>\n<br \/><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-04 15:32:03<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;14259&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u0686\u06af\u0648\u0646\u0647 NaN \u0647\u0627 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 DataFrame \u067e\u0627\u0646\u062f\u0627 \u067e\u0631 \u06a9\u0646\u06cc\u0645&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0647 \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u0646\u062f \u0648 \u06cc\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u062e\u0637\u0627\u06cc \u0627\u0646\u0633\u0627\u0646\u06cc\u060c \u062e\u0637\u0627\u06cc \u0627\u0628\u0632\u0627\u0631\u060c \u067e\u0631\u062f\u0627\u0632\u0634 \u0627\u0632 \u06cc\u06a9 \u062a\u06cc\u0645 \u062f\u06cc\u06af\u0631 \u06cc\u0627 \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0641\u0642\u0637 \u06a9\u0645\u0628\u0648\u062f \u062f\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0627\u0635 \u0631\u062e \u0645\u06cc \u062f\u0647\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0628\u0627\u06cc\u062a\u060c \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0631\u0648\u0634 \u067e\u0631 \u06a9\u0631\u062f\u0646 NaNs \u062f\u0631 a \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u0634\u062a DataFrame\u060c \u0627\u06af\u0631 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f NaN \u0647\u0627 \u0631\u0627 \u0628\u0627 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14260,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1743,620],"tags":[],"class_list":["post-14259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","category-programming"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/14259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=14259"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/14259\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/14260"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=14259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=14259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=14259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}