I want to plot the data as shown. but it is giving error as : Error using plot Conversion to double from cell is not possible.

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Sachin Patil
Sachin Patil 2016-9-12
编辑： Sachin Patil 2016-9-13
fid = fopen('C:\Users\1319146\Downloads\data.txt');
textLine = fgets(fid); % Read first line.
lineCounter = 1;
while ischar(textLine)
numbers = sscanf(textLine, '%f ');
x= length(numbers);
for k = 1 : x
ca{lineCounter, k} = numbers(k);
end
textLine = fgets(fid);
lineCounter = lineCounter + 1;
end
fclose(fid);
c2 = ca(:,2);
[n,p] = size (c2);
t = 1:n;
plot(t,c2);
legend('Location 1','Location','NorthWest')
xlabel('Time'), ylabel('distance')
%c2=
[ 1.3589]
[ 7.9773]
[28.2728]
[28.2728]
[ 0]
[ 0]
[ 0]
[ 0]
[ 0]
[ 0]
[]
[ 0.8705]
[ 7.4681]
[28.2728]
[37.0303]
[ 0]
[ 0]
[ 0]
[ 0]
[ 0]
[ 0]

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采纳的回答

Star Strider
Star Strider 2016-9-12
I cannot run your code to test this.
See if this works:
plot(t,c2{:});
Not the curly brackets ‘{}’ in the ‘c2’ reference.
  1 个评论
Sachin Patil
Sachin Patil 2016-9-13
编辑：Sachin Patil 2016-9-13
Its working correctly. But when i increased the number of data(readings) from 21*1 to 250*1, then it is giving error as: Data must be a single matrix Y or a list of pairs X,Y

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