I want to plot my outputs , X vector is text format ( for example 10/3/2015-8:00-8:15 ) and my Y vector is number . how should i plot them ? I got error on text format

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javad amoli
javad amoli 2018-3-20
评论： javad amoli 2018-3-21
I got error on text format , seem that both of the vector must be number .
another Q : how can I change the shape of the graph?

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回答（1 个）

Walter Roberson
Walter Roberson 2018-3-20
You need to convert those time strings to datenum or datetime objects, as we discussed with you in https://www.mathworks.com/matlabcentral/answers/382006-what-is-this-eror-and-what-does-it-mean-and-how-can-i-solve-it#answer_304563
  1 个评论
javad amoli
javad amoli 2018-3-21
I know it, I did my changes on it, I don't know why it doesn't work . look at my code and my CSV file plz.
function [Time_stamp, Original_load_kw]=Plot()
filename = 'Dterministic_Output_data.csv';
delimiter = ',';
startRow = 2;
formatSpec = '%{yyyy-mm-ddTHHMMSS}D%*s%[^\n\r]';
fileID = fopen(filename,'r');
dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'HeaderLines' ,startRow-2);
%dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'TextType', 'string', 'EmptyValue', NaN, 'HeaderLines' ,startRow-1, 'ReturnOnError', false, 'EndOfLine', '\r\n');
a = datestr(dataArray{1,1},'yyyy-mm-ddTHHMMSS');
Time_stamp = cellstr(a);
fclose(fileID);
formatSpec = '%*s%f%[^\n\r]';
fileID = fopen(filename,'r');
dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'HeaderLines' ,startRow-2);
%dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'TextType', 'string', 'EmptyValue', NaN, 'HeaderLines' ,startRow-1, 'ReturnOnError', false, 'EndOfLine', '\r\n');
Original_load_kw = dataArray{:, 1};
fclose(fileID);
X = datenum( Time_stamp,'yyyy-mm-ddTHHMMSS');
stem( X, Original_load_kw );
datetick('x','yyyy-mm-ddTHHMMSS'),
end

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