diff --git a/iris1.csv b/iris1.csv
new file mode 100644
index 0000000..01ec247
--- /dev/null
+++ b/iris1.csv
@@ -0,0 +1,151 @@
+sepal_length,sepal_width,petal_length,petal_width,species
+5.1,3.5,1.4,0.2,setosa
+4.9,3,1.4,0.2,setosa
+4.7,3.2,1.3,0.2,setosa
+4.6,3.1,1.5,0.2,setosa
+5,3.6,1.4,0.2,setosa
+5.4,3.9,1.7,0.4,setosa
+4.6,3.4,1.4,0.3,setosa
+5,3.4,1.5,0.2,setosa
+4.4,2.9,1.4,0.2,setosa
+4.9,3.1,1.5,0.1,setosa
+5.4,3.7,1.5,0.2,setosa
+4.8,3.4,1.6,0.2,setosa
+4.8,3,1.4,0.1,setosa
+4.3,3,1.1,0.1,setosa
+5.8,4,1.2,0.2,setosa
+5.7,4.4,1.5,0.4,setosa
+5.4,3.9,1.3,0.4,setosa
+5.1,3.5,1.4,0.3,setosa
+5.7,3.8,1.7,0.3,setosa
+5.1,3.8,1.5,0.3,setosa
+5.4,3.4,1.7,0.2,setosa
+5.1,3.7,1.5,0.4,setosa
+4.6,3.6,1,0.2,setosa
+5.1,3.3,1.7,0.5,setosa
+4.8,3.4,1.9,0.2,setosa
+5,3,1.6,0.2,setosa
+5,3.4,1.6,0.4,setosa
+5.2,3.5,1.5,0.2,setosa
+5.2,3.4,1.4,0.2,setosa
+4.7,3.2,1.6,0.2,setosa
+4.8,3.1,1.6,0.2,setosa
+5.4,3.4,1.5,0.4,setosa
+5.2,4.1,1.5,0.1,setosa
+5.5,4.2,1.4,0.2,setosa
+4.9,3.1,1.5,0.2,setosa
+5,3.2,1.2,0.2,setosa
+5.5,3.5,1.3,0.2,setosa
+4.9,3.6,1.4,0.1,setosa
+4.4,3,1.3,0.2,setosa
+5.1,3.4,1.5,0.2,setosa
+5,3.5,1.3,0.3,setosa
+4.5,2.3,1.3,0.3,setosa
+4.4,3.2,1.3,0.2,setosa
+5,3.5,1.6,0.6,setosa
+5.1,3.8,1.9,0.4,setosa
+4.8,3,1.4,0.3,setosa
+5.1,3.8,1.6,0.2,setosa
+4.6,3.2,1.4,0.2,setosa
+5.3,3.7,1.5,0.2,setosa
+5,3.3,1.4,0.2,setosa
+7,3.2,4.7,1.4,versicolor
+6.4,3.2,4.5,1.5,versicolor
+6.9,3.1,4.9,1.5,versicolor
+5.5,2.3,4,1.3,versicolor
+6.5,2.8,4.6,1.5,versicolor
+5.7,2.8,4.5,1.3,versicolor
+6.3,3.3,4.7,1.6,versicolor
+4.9,2.4,3.3,1,versicolor
+6.6,2.9,4.6,1.3,versicolor
+5.2,2.7,3.9,1.4,versicolor
+5,2,3.5,1,versicolor
+5.9,3,4.2,1.5,versicolor
+6,2.2,4,1,versicolor
+6.1,2.9,4.7,1.4,versicolor
+5.6,2.9,3.6,1.3,versicolor
+6.7,3.1,4.4,1.4,versicolor
+5.6,3,4.5,1.5,versicolor
+5.8,2.7,4.1,1,versicolor
+6.2,2.2,4.5,1.5,versicolor
+5.6,2.5,3.9,1.1,versicolor
+5.9,3.2,4.8,1.8,versicolor
+6.1,2.8,4,1.3,versicolor
+6.3,2.5,4.9,1.5,versicolor
+6.1,2.8,4.7,1.2,versicolor
+6.4,2.9,4.3,1.3,versicolor
+6.6,3,4.4,1.4,versicolor
+6.8,2.8,4.8,1.4,versicolor
+6.7,3,5,1.7,versicolor
+6,2.9,4.5,1.5,versicolor
+5.7,2.6,3.5,1,versicolor
+5.5,2.4,3.8,1.1,versicolor
+5.5,2.4,3.7,1,versicolor
+5.8,2.7,3.9,1.2,versicolor
+6,2.7,5.1,1.6,versicolor
+5.4,3,4.5,1.5,versicolor
+6,3.4,4.5,1.6,versicolor
+6.7,3.1,4.7,1.5,versicolor
+6.3,2.3,4.4,1.3,versicolor
+5.6,3,4.1,1.3,versicolor
+5.5,2.5,4,1.3,versicolor
+5.5,2.6,4.4,1.2,versicolor
+6.1,3,4.6,1.4,versicolor
+5.8,2.6,4,1.2,versicolor
+5,2.3,3.3,1,versicolor
+5.6,2.7,4.2,1.3,versicolor
+5.7,3,4.2,1.2,versicolor
+5.7,2.9,4.2,1.3,versicolor
+6.2,2.9,4.3,1.3,versicolor
+5.1,2.5,3,1.1,versicolor
+5.7,2.8,4.1,1.3,versicolor
+6.3,3.3,6,2.5,virginica
+5.8,2.7,5.1,1.9,virginica
+7.1,3,5.9,2.1,virginica
+6.3,2.9,5.6,1.8,virginica
+6.5,3,5.8,2.2,virginica
+7.6,3,6.6,2.1,virginica
+4.9,2.5,4.5,1.7,virginica
+7.3,2.9,6.3,1.8,virginica
+6.7,2.5,5.8,1.8,virginica
+7.2,3.6,6.1,2.5,virginica
+6.5,3.2,5.1,2,virginica
+6.4,2.7,5.3,1.9,virginica
+6.8,3,5.5,2.1,virginica
+5.7,2.5,5,2,virginica
+5.8,2.8,5.1,2.4,virginica
+6.4,3.2,5.3,2.3,virginica
+6.5,3,5.5,1.8,virginica
+7.7,3.8,6.7,2.2,virginica
+7.7,2.6,6.9,2.3,virginica
+6,2.2,5,1.5,virginica
+6.9,3.2,5.7,2.3,virginica
+5.6,2.8,4.9,2,virginica
+7.7,2.8,6.7,2,virginica
+6.3,2.7,4.9,1.8,virginica
+6.7,3.3,5.7,2.1,virginica
+7.2,3.2,6,1.8,virginica
+6.2,2.8,4.8,1.8,virginica
+6.1,3,4.9,1.8,virginica
+6.4,2.8,5.6,2.1,virginica
+7.2,3,5.8,1.6,virginica
+7.4,2.8,6.1,1.9,virginica
+7.9,3.8,6.4,2,virginica
+6.4,2.8,5.6,2.2,virginica
+6.3,2.8,5.1,1.5,virginica
+6.1,2.6,5.6,1.4,virginica
+7.7,3,6.1,2.3,virginica
+6.3,3.4,5.6,2.4,virginica
+6.4,3.1,5.5,1.8,virginica
+6,3,4.8,1.8,virginica
+6.9,3.1,5.4,2.1,virginica
+6.7,3.1,5.6,2.4,virginica
+6.9,3.1,5.1,2.3,virginica
+5.8,2.7,5.1,1.9,virginica
+6.8,3.2,5.9,2.3,virginica
+6.7,3.3,5.7,2.5,virginica
+6.7,3,5.2,2.3,virginica
+6.3,2.5,5,1.9,virginica
+6.5,3,5.2,2,virginica
+6.2,3.4,5.4,2.3,virginica
+5.9,3,5.1,1.8,virginica
diff --git a/lyx.py b/lyx.py
new file mode 100644
index 0000000..1d68757
--- /dev/null
+++ b/lyx.py
@@ -0,0 +1,52 @@
+import pandas as pd
+import matplotlib.pyplot as plt
+
+df = pd.read_csv("iris1.csv", encoding="gbk")
+# 0=sepal_ler  1=sepal_w  2=petal_l  3=petal_w  4=species
+col0 = df.iloc[:,0]
+col1 = df.iloc[:,1]
+col2 = df.iloc[:,2]
+col3 = df.iloc[:,3]
+col4 = df.iloc[:,4]
+
+plt.rcParams["font.sans-serif"] = ["SimHei"]
+plt.rcParams["axes.unicode_minus"] = False
+plt.figure(figsize=(18,12))
+
+#1 sepal散点
+plt.subplot(3,3,1)
+for sp in col4.unique():
+    idx = col4==sp
+    plt.scatter(col0[idx],col1[idx],label=sp)
+plt.title("sepal花萼散点图")
+plt.legend()
+
+#2 petal散点
+plt.subplot(3,3,2)
+for sp in col4.unique():
+    idx = col4==sp
+    plt.scatter(col2[idx],col3[idx],label=sp)
+plt.title("petal花瓣散点图")
+plt.legend()
+
+#3 三个直方图
+sps = col4.unique()
+plt.subplot(3,3,4)
+plt.hist(col2[col4==sps[0]])
+plt.title(f"{sps[0]}直方图")
+
+plt.subplot(3,3,5)
+plt.hist(col2[col4==sps[1]])
+plt.title(f"{sps[1]}直方图")
+
+plt.subplot(3,3,6)
+plt.hist(col2[col4==sps[2]])
+plt.title(f"{sps[2]}直方图")
+
+#4 setosa折线
+plt.subplot(3,3,7)
+plt.plot(col0[col4=="setosa"],marker='o')
+plt.title("setosa叶长折线图")
+
+plt.tight_layout()
+plt.show()
\ No newline at end of file
diff --git a/tupian.jpg b/tupian.jpg
new file mode 100644
index 0000000..42e3d1f
Binary files /dev/null and b/tupian.jpg differ