plotting of graph for maximum and minimum values

X Y

106 163

128 155

139 163

161 155

83 148

105 140

116 148

138 140

124 130

146 122

157 130

179 122

101 115

123 107

134 115

156 107

111 152

133 144

144 152

166 144

88 137

110 129

i wanted to plot a graph for top 5 points where x is minimum and y is maximum

[David Hill]

Do you want maximum different between y-x? Otherwise, your instructions don't make since.

Answer 1

[Subhadeep Koley]

I am assuming that you want to plot a graph for top 5 points where X is sorted in ascending manner, and Y is sorted in descending manner. The following code might help.

(Download the attached your_Data.mat file)

load('your_Data');
x=your_Data(:,1);
y=your_Data(:,2);
% Sort X data
x_sorted=sort(x);
% Sort Y data
y_sorted=sort(y,'desc');
% Plot X~Y top 5 points where X is sorted in ascending manner, and Y is sorted in descending manner
figure;plot(x_sorted(1:5),y_sorted(1:5));