From 0fe13ae90b15af7614b245a92b9f7616be86aeeb Mon Sep 17 00:00:00 2001
From: cheer36 <1175478916.com>
Date: Fri, 5 Jul 2024 18:40:55 +0800
Subject: [PATCH] =?UTF-8?q?=E9=97=AB=E7=A7=8B=E5=BD=A4=E7=9A=84=E4=BD=9C?=
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---
 Test1/__pycache__/datas.cpython-310.pyc | Bin 0 -> 646 bytes
 Test1/datas.py                          | 111 ++++++++++++++++++++++++
 Test1/predict.py                        |  39 +++++++++
 3 files changed, 150 insertions(+)
 create mode 100644 Test1/__pycache__/datas.cpython-310.pyc
 create mode 100644 Test1/datas.py
 create mode 100644 Test1/predict.py

diff --git a/Test1/__pycache__/datas.cpython-310.pyc b/Test1/__pycache__/datas.cpython-310.pyc
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diff --git a/Test1/datas.py b/Test1/datas.py
new file mode 100644
index 0000000..69c5517
--- /dev/null
+++ b/Test1/datas.py
@@ -0,0 +1,111 @@
+datas = [
+    # 模拟吕梁
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8200
+    },
+    {
+        "city": "吕梁",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 7600
+    },
+    # 模拟吕梁第二类
+    {
+        "city": "吕梁",
+        "area": 300,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "吕梁",
+        "area": 500,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 8200
+    },
+    {
+        "city": "吕梁",
+        "area": 500,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 8200
+    },
+
+
+
+
+    # 模拟太原
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8200
+    },
+    {
+        "city": "太原",
+        "area": 100,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 7600
+    },
+    # 模拟太原第二类
+    {
+        "city": "太原",
+        "area": 300,
+        "rooms": 2,
+        "school": 1,
+        "style": 1,
+        "price": 8000
+    },
+    {
+        "city": "太原",
+        "area": 135,
+        "rooms": 3,
+        "school": 1,
+        "style": 1,
+        "price": 8600
+    },
+    {
+        "city": "太原",
+        "area": 140,
+        "rooms": 3,
+        "school": 2,
+        "style": 2,
+        "price": 8600
+    },
+
+    # 3000      10   1000    1300   1500
+    # 太原 2     100   3      1        1
+
+    # 城市 x1  面积 x2  房间数量 x3  学区房 x4  装修 x5
+]
diff --git a/Test1/predict.py b/Test1/predict.py
new file mode 100644
index 0000000..01706f9
--- /dev/null
+++ b/Test1/predict.py
@@ -0,0 +1,39 @@
+# import numpy as np
+#
+# a = np.array([[1, 2, 3], [1, 2, 3], [1, 2, 3]])
+# b = np.array([1, 2, 3])
+# # 求点乘
+# print(a.dot(b))
+# # 求转置
+# print(a)
+# print(a.T)
+# # 奇异矩阵
+# # 求逆
+# print(np.linalg.pinv(a))
+
+
+import numpy as np
+from datas import datas
+X=[]
+Y=[]
+cityMark={"吕梁":1,"太原":2}
+for item in datas:
+    single=[]
+    # 城市
+    single.append(cityMark[item["city"]])
+    # 面积
+    single.append(item["area"])
+    # 学区房
+    single.append(item["school"])
+    # 装修
+    single.append(item["style"])
+
+X.append(single)
+Y.append(item["price"])
+
+X=np.array(X)
+Y=np.array(Y)
+
+theta=np.linalg.pinv(X.T.dot(X)).dot(X.T).dot(Y)
+
+print(theta.dot(np.array([1,100,2,1])))
\ No newline at end of file
-- 
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