From cfc34f0e10010515a1335adf89e9784b6043ce21 Mon Sep 17 00:00:00 2001
From: Svetlnkk <89974865+Svetlnkk@users.noreply.github.com>
Date: Sat, 23 Sep 2023 21:36:07 +0400
Subject: [PATCH] zavrazhnova_svetlana_lab_2 is ready

---
 .idea/IIS_2023_1.iml                          |   8 ++
 .../inspectionProfiles/profiles_settings.xml  |   6 ++
 .idea/misc.xml                                |   4 +
 .idea/modules.xml                             |   8 ++
 .idea/vcs.xml                                 |   6 ++
 .idea/workspace.xml                           |  92 ++++++++++++++++++
 zavrazhnova_svetlana_lab_2/README.md          |  30 ++++++
 zavrazhnova_svetlana_lab_2/result.png         | Bin 0 -> 14634 bytes
 .../zavrazhnova_svetlana_lab_2.py             |  54 ++++++++++
 9 files changed, 208 insertions(+)
 create mode 100644 .idea/IIS_2023_1.iml
 create mode 100644 .idea/inspectionProfiles/profiles_settings.xml
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/vcs.xml
 create mode 100644 .idea/workspace.xml
 create mode 100644 zavrazhnova_svetlana_lab_2/README.md
 create mode 100644 zavrazhnova_svetlana_lab_2/result.png
 create mode 100644 zavrazhnova_svetlana_lab_2/zavrazhnova_svetlana_lab_2.py

diff --git a/.idea/IIS_2023_1.iml b/.idea/IIS_2023_1.iml
new file mode 100644
index 0000000..4e6ce24
--- /dev/null
+++ b/.idea/IIS_2023_1.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="jdk" jdkName="Python 3.8 (venv)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..3c29c38
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (venv)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..89e118a
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/IIS_2023_1.iml" filepath="$PROJECT_DIR$/.idea/IIS_2023_1.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000..b610ec7
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="0ceb130e-88da-4a20-aad6-17f5ab4226ac" name="Changes" comment="">
+      <change afterPath="$PROJECT_DIR$/zavrazhnova_svetlana_lab_2/result.png" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Python Script" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="ProjectId" id="2VlZqWiOX68aCf0o2y0AtYJWURS" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "last_opened_file_path": "D:/ulstukek/Course4/IIS/IISLabs/IIS_2023_1"
+  }
+}]]></component>
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="D:\ulstukek\Course4\IIS\IISLabs\IIS_2023_1\zavrazhnova_svetlana_lab_1" />
+    </key>
+  </component>
+  <component name="RunManager">
+    <configuration name="zavrazhnova_svetlana_lab_2" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+      <module name="IIS_2023_1" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/zavrazhnova_svetlana_lab_2" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/zavrazhnova_svetlana_lab_2/zavrazhnova_svetlana_lab_2.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="false" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="Python.zavrazhnova_svetlana_lab_2" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="0ceb130e-88da-4a20-aad6-17f5ab4226ac" name="Changes" comment="" />
+      <created>1695412818437</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1695412818437</updated>
+    </task>
+    <servers />
+  </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State />
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/zavrazhnova_svetlana_lab_2/README.md b/zavrazhnova_svetlana_lab_2/README.md
new file mode 100644
index 0000000..95eecf7
--- /dev/null
+++ b/zavrazhnova_svetlana_lab_2/README.md
@@ -0,0 +1,30 @@
+### Задание по варианту
+Лассо (Lasso),Сокращение признаков Случайными деревьями (Random Forest Regressor), Линейная корреляция (f_regression)
+
+### Как запустить лабораторную работу
+ЛР запускается через файл `zavrazhnova_svetlana_lab_2.py` 
+
+### Какие технологии использовали
+импорт класса `MinMaxScaler`, выполняющего масштабирование данных до заданного диапазона (от 0 до 1).
+Необходимость его использования объясняется следующим: каждая модель регрессии дает оценки
+важности признаков в своем диапазоне. Для того чтобы найти признак с максимальной средней важностью по трем моделям, нам необходимо привести выданные ими оценки к одному виду.
+Модели линейной регрессии, ридж-регрессии и лассо-регрессии из библиотеки `scikit-learn`
+
+### Что делает
+Применение регрессионных моделей для определения важности признаков.
+
+Результат работы программы показывает ранжирование признаков по их значимости для задачи. Чем больше значение ранга, тем более значимый признак.
+Полученные ранги можно использовать для отбора наиболее значимых признаков и сокращения размерности данных.
+
+### Примеры выходных значений
+
+![example program result](result.png)
+
+В данном случае, в соответствии с полученными результатами, можно сказать следующее:
+
+1. Признаки 'x4' и 'x14' имеют наивысшие ранги (больше 380), что указывает на их большую значимость в решении задачи.
+2. Признаки 'x2' и 'x12' имеют средние ранги (от 170 до 180), что означает их среднюю значимость.
+3. Признаки 'x1' и 'x11' имеют ранги около 120, что указывает на их относительную значимость.
+4. Признаки 'x5', 'x8' и 'x7' имеют низкие ранги (от 5 до 17), что говорит о их низкой значимости.
+5. Признаки 'x9', 'x3', 'x13', 'x10' и 'x6' имеют очень низкие ранги (меньше 3), что указывает на их минимальную значимость или наличие практически нулевых эффектов.
+
diff --git a/zavrazhnova_svetlana_lab_2/result.png b/zavrazhnova_svetlana_lab_2/result.png
new file mode 100644
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diff --git a/zavrazhnova_svetlana_lab_2/zavrazhnova_svetlana_lab_2.py b/zavrazhnova_svetlana_lab_2/zavrazhnova_svetlana_lab_2.py
new file mode 100644
index 0000000..693ef46
--- /dev/null
+++ b/zavrazhnova_svetlana_lab_2/zavrazhnova_svetlana_lab_2.py
@@ -0,0 +1,54 @@
+from sklearn.linear_model import Lasso
+from sklearn.ensemble import RandomForestRegressor
+from sklearn.feature_selection import f_regression
+from sklearn.preprocessing import MinMaxScaler
+import numpy as np
+
+np.random.seed(0)
+size = 750
+#входные данные.
+X = np.random.uniform(0, 1, (size, 14))
+
+#Генерируется целевая переменная Y на основе математической функции от входных данных X.
+Y = (10 * np.sin(np.pi*X[:,0]*X[:,1]) + 20*(X[:,2] - .5)**2 +
+     10*X[:,3] + 5*X[:,4]**5 + np.random.normal(0,1))
+X[:,10:] = X[:,:4] + np.random.normal(0, .025, (size,4))
+
+names = ["x%s" % i for i in range(1,15)]
+#Создается пустой словарь для хранения рангов признаков
+ranks = {}
+
+#Создается экземпляр модели лассо-регрессии
+lasso = Lasso(alpha=.05)
+#Модель подгоняется под входные данные X и целевую переменную Y
+lasso.fit(X, Y)
+ranks["Lasso"] = dict(zip(names, lasso.coef_))
+
+rf = RandomForestRegressor(n_estimators=100, random_state=0)
+rf.fit(X, Y)
+ranks["Random Forest"] = dict(zip(names, rf.feature_importances_))
+
+f, _ = f_regression(X, Y, center=True)
+ranks["f_regression"] = dict(zip(names, f))
+
+def rank_to_dict(ranks, names):
+    ranks = np.abs(ranks)
+    minmax = MinMaxScaler()
+    #масштабирование рангов с помощью MinMaxScaler
+    ranks = minmax.fit_transform(np.array(ranks).reshape(-1, 1)).ravel()
+    ranks = map(lambda x: round(x, 2), ranks)
+    return dict(zip(names, ranks))
+
+#словарь для хранения средних рангов признаков
+mean = {}
+for key, value in ranks.items():
+    for item in value.items():
+        if item[0] not in mean:
+            mean[item[0]] = 0
+        mean[item[0]] += item[1]
+
+sorted_mean = sorted(mean.items(), key=lambda x: x[1], reverse=True)
+result = {}
+for item in sorted_mean:
+    result[item[0]] = item[1]
+    print(f'{item[0]}: {item[1]}')