matlab logistic函数表达式,利用MATLAB进行logistic曲线拟合

哪位会做曲线拟合请帮帮忙,万分感谢。请帮忙拟合两条logistic曲线,数据为

X1:[70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

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165

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167

168

169

170

171

172

173

174

175

176

177

178

179

180]

y:[30.51

32.17

30.71

32.74

32.44

32.25

32.28

33.07

32.90

33.23

32.99

33.30

34.02

34.57

35.41

35.85

36.61

37.33

38.05

38.75

39.35

40.03

40.71

41.53

42.28

42.81

43.33

44.07

44.84

45.68

46.52

47.44

48.22

49.08

49.91

50.73

51.64

52.62

53.30

54.15

55.04

55.65

56.25

56.96

57.80

58.49

59.47

60.51

61.55

62.45

63.22

64.29

65.25

66.40

67.36

68.26

69.49

70.21

71.05

71.99

73.01

73.91

74.70

75.53

76.63

77.10

78.04

79.52

80.09

81.22

81.82

82.76

83.65

84.62

85.26

86.10

87.28

87.93

88.76

89.58

90.30

90.50

91.10

91.63

92.55

93.15

93.28

94.37

95.56

95.74

96.20

97.19

97.47

97.56

97.00

97.74

99.29

100.51

101.82

102.44

103.30

104.75

105.51

105.00

107.55

112.61

114.19

116.01

118.03

119.43

121.14 ]

T:[70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

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180]

w:[32.30

32.23

33.81

33.74

32.16

31.16

31.82

32.07

32.58

32.68

32.90

33.58

33.94

34.59

35.13

35.52

36.26

36.86

37.87

38.71

39.30

39.87

40.74

41.35

42.18

43.04

43.90

44.62

45.37

46.31

47.14

47.86

48.77

49.63

50.46

51.30

52.13

52.95

53.81

54.60

55.56

56.39

57.26

58.04

59.86

59.80

60.64

61.48

62.39

63.33

64.18

65.13

66.05

66.93

67.64

68.65

69.43

70.34

71.18

72.22

72.99

74.04

74.96

75.78

76.64

77.62

78.37

79.26

80.26

81.22

82.19

83.07

83.94

84.73

85.78

86.68

87.17

88.46

88.85

90.03

91.15

91.99

92.91

93.66

94.68

95.57

96.31

97.11

97.91

98.84

99.34

100.45

101.26

102.28

102.53

103.49

104.21

104.65

104.98

105.33

105.32

105.03

106.08

107.41

107.63

108.20

107.62

107.34

104.47

104.48

104.02 ]

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