Prediction based on previous historical data
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Hi, I have Historical data of "Start" and "End". Now, I have "Start" value, but want to predict "End" value. Can some one help me how to predict today's End value based on available Historical "Start & End" and today's Start value (to Predict Today End value). The day is of random type no correlation with time. Please help me some available models using MATLAB. Many many thanks in advance.
Historical Data:
Start End
0.250 0.256
0.240 0.240
0.224 0.240
0.260 0.270
0.240 0.260
And Today Start value: 0.21 (Today End Value: 0.23)
Sincerely, Your's
采纳的回答
You don't have enough points to infer any kind of regression. I mean, if you look at:
data = [0.25 0.256
0.24 0.24
0.224 0.24
0.26 0.27
0.24 0.26];
scatter(data(:, 1), data(:, 2));
there's no pattern to your data.
If you want to do a linear regression anyway:
polystartend = polyfit(data(:,1), data(:, 2), 1); %linear regression
todaystart = 21;
todayend = polyval(polystartend, todaystart)
gives
todayend = 0.22688
更多回答（2 个）
Udit Gupta
2015-2-6
0 个投票
You can use mtlabs Curve Fitting tool (cftool). If you don't have that search for any linear regression or linear interpolation implementation on file exchange.
KUMANAN KUPUSAMY
2017-1-28
0 个投票
can i use current data to predict previous data?
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在 帮助中心 和 File Exchange 中查找有关 Linear Predictive Coding 的更多信息
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