質問編集履歴
3
特になし
test
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@@ -1 +1 @@
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1
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Rで
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1
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Rでのプログラミング
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test
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File without changes
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2
特になし
test
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File without changes
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test
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@@ -8,7 +8,7 @@
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8
8
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9
9
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10
10
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11
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(2)
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11
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(2)
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12
12
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13
13
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A, B という二人の候補者がいる選挙があり, A の総得票数は m 票, B の総得票数は n 票であった
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14
14
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@@ -44,88 +44,4 @@
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44
44
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45
45
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46
46
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47
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-
この問題の(i)はかろうじて解けたのですが、(ii)のコードが分かりません
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47
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この問題の(i)はかろうじて解けたのですが、(ii)のコードが分かりません
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48
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-
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49
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-
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50
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51
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### 該当のソースコード
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52
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-
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53
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(i)
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54
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-
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55
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mysim1 <- function(m,n){
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56
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-
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57
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set.seed(1)
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58
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-
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59
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x <- rbinom(m+n,1,m/(m+n))
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60
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-
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61
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R <- cumsum(x)
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62
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-
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63
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-
return(R)
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64
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-
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65
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-
}
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66
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-
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67
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-
mysim2 <- function(m,n){
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68
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-
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69
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-
set.seed(1)
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70
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-
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71
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-
y <- rbinom(m+n,1,n/(m+n))
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72
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-
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73
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-
S <- cumsum(y)
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74
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-
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75
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-
return(S)
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76
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-
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77
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-
}
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78
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-
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79
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-
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80
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-
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81
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-
X <- mysim1(60,40)
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82
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-
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83
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-
Y <- mysim2(60,40)
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84
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-
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85
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-
plot(X, type="l", xlab = "N", ylab = "sum", lwd = 2, ylim = c(0,70), main = "ベルトランの投票問題",col = "red")
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86
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-
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87
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-
par(new=T)
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88
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-
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89
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-
plot(Y, type="l", xlab = "N", ylab = "sum", lwd = 2, ylim = c(0,70), col = "blue")
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90
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-
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91
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-
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92
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-
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93
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-
(ii)
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94
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-
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95
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-
myfun <- function(){
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96
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-
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97
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-
return(mysim1(60,40) - mysim2(60,40))
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98
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-
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99
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-
}
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100
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-
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101
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-
S <- 0
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102
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-
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103
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-
pn <- matrix(0,100,10000)
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104
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-
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105
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-
mysim <- function(){
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106
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-
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107
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-
for (m in 1:10000){
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108
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-
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109
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-
pn[ ,m] <- myfun()
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110
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-
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111
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-
res <- FALSE
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112
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-
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113
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-
for(n in 1:100){
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114
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-
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115
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-
if(pn[n,m] < 0){
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116
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-
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117
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res <- TRUE
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118
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-
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119
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}
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120
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-
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121
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-
}
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122
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-
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123
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-
if(res) next
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124
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-
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125
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-
S <- S+1
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126
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-
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127
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-
}
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128
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-
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|
129
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-
print(S/10000)
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130
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-
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131
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-
}
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1
(ii)の自分で書いたコードを追加しました。どこが間違っているか指摘お願いします。
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -50,6 +50,82 @@
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50
50
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|
|
51
51
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### 該当のソースコード
|
|
52
52
|
|
|
53
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+
(i)
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|
54
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+
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|
55
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+
mysim1 <- function(m,n){
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56
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+
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57
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+
set.seed(1)
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58
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+
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59
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+
x <- rbinom(m+n,1,m/(m+n))
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60
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+
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61
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+
R <- cumsum(x)
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62
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+
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63
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+
return(R)
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64
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+
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65
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+
}
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66
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+
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67
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+
mysim2 <- function(m,n){
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68
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+
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69
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+
set.seed(1)
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70
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+
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71
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+
y <- rbinom(m+n,1,n/(m+n))
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72
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+
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73
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+
S <- cumsum(y)
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|
74
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75
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+
return(S)
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76
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77
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}
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53
78
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54
79
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80
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+
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81
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+
X <- mysim1(60,40)
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82
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+
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|
83
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+
Y <- mysim2(60,40)
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|
84
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+
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|
85
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+
plot(X, type="l", xlab = "N", ylab = "sum", lwd = 2, ylim = c(0,70), main = "ベルトランの投票問題",col = "red")
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|
86
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+
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|
87
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+
par(new=T)
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|
88
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+
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|
89
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+
plot(Y, type="l", xlab = "N", ylab = "sum", lwd = 2, ylim = c(0,70), col = "blue")
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|
90
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+
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|
91
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+
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|
92
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+
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|
93
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+
(ii)
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94
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+
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95
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+
myfun <- function(){
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|
96
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+
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|
97
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+
return(mysim1(60,40) - mysim2(60,40))
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98
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+
|
|
99
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+
}
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|
100
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+
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101
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+
S <- 0
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|
102
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+
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103
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+
pn <- matrix(0,100,10000)
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|
104
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+
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105
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+
mysim <- function(){
|
|
106
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+
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|
107
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+
for (m in 1:10000){
|
|
108
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+
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|
109
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+
pn[ ,m] <- myfun()
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|
110
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+
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|
111
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+
res <- FALSE
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|
112
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+
|
|
113
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+
for(n in 1:100){
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114
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+
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115
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if(pn[n,m] < 0){
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116
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+
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117
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res <- TRUE
|
|
118
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+
|
|
119
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+
}
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120
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+
|
|
121
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+
}
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122
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+
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55
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-
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123
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+
if(res) next
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124
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+
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125
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+
S <- S+1
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126
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+
|
|
127
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+
}
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|
128
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+
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|
129
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+
print(S/10000)
|
|
130
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+
|
|
131
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+
}
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