Questions tagged [predictor]

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5
votes
1answer
197 views

How do I create & train a neural net to predict a stock closing price at T+5min using OHLC and other data?

I'm trying to create a neural network and train it to test predictability of short term stock price movements. I've collated a 1-min open, high, low, closing and volume dataset for a particular stock....
0
votes
0answers
49 views

Creating a prediction/distribution based on several years of data

So I have several years of data from a survey. For each year I've used FindDistribution and Predict to see if I can fit the data. Here's one example Where I used FindDistribution to get ...
1
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0answers
43 views

Confusing errors using predict to map between matrices

I'm messing around with the new features involving machine learning in Mathematica 11, and one easy thing to try is to make a machine learn the matrix exponential function. The first silly idea I had ...
4
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1answer
72 views

Predict[] Application Timing [closed]

I trained a Predict and when I look at PredictorInformation it says evaluation time is less than 1 millisecond per example. ...
6
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1answer
76 views

Predict failed to reproduce result of multiple linear regression

I would like to reproduce the result of multiple linear regression with Predict. In approach 1, I used matrix computation and obtained ...
2
votes
1answer
141 views

Can Predict return non-numerical values?

I just started working with the Mathematica machine learning package. When I use Predict, I can predict only numerical values like ...
1
vote
0answers
128 views

Machine Learning Predict Precision

I have this code p = Predict[{1 -> 123456789123456789, 3 -> 987654321987654321}] values are big, more than 15 digits (standard machine precision). when I ...
2
votes
1answer
61 views

proper use of PredictorMeasurements[]

I've been playing around with Predict[] with multi-dimensional datasets and, for small training sets anyway, things seem to work correctly. For example, ...
2
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0answers
272 views

Predict a lagging continuous observable based on leading continuous parameters?

Consider a time dependent observable obs[t] and a set of n time dependent parameters par[i,t]...
2
votes
1answer
110 views

Changing plot style in PredictorMeasurements

I'm trying to combine a PredictorMeasurements["ComparisonPlot"] plot with another plot, but the problem is that the plot generated by ...
5
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0answers
92 views

How to use PredictorMeasurements without a PredictorFunction?

I have the output and target values computed already from a model applied a test set, but it's not a PredictorFunction. Is there any way to force feed these to <...
8
votes
2answers
244 views

Predict: How to customize model construction? (e.g. cross fold validation, mtry, number features used, ROC curve)

Question Overview In general this question is in regards to how to tweak the parameters used when one specifies a Method when calling the Predict function. Herein ...
3
votes
2answers
776 views

Vector-valued output from Predict

I have a list of 3D points, and I'd like to run a Predict on them just to test. It should be fairly straightforward. Here's a simple example: ...
1
vote
0answers
191 views

How to use the function Predict[] with variable-length dataset?

I can use the function Predict[] with pre-defined dataset successfully. A = {1, 2, 3, 4, 5, 6, 7, 8, 9} -> {1, 2, 3, 4, 5, 6, 7, 8, 9}^3; p = Predict[A] ...
3
votes
1answer
300 views

Use Kalman filter to predict

Here is a set of altitude data I collected with an Arduino sensor BMP-180 on a board CanSat data = {13.15, 13.4, 13.15, 13.31, 13.4, 13.31, 13.15,.....} how can ...
3
votes
0answers
74 views

What ratio of example per class gives best results and least overfitting?

For an n-class classifier or predictor, how many positive (or negative?) examples of each of the n classes should I put into my training and testing sets for the best results? I anticipate that ...
12
votes
1answer
423 views

How to monitor the progress of training a classifier?

I've had p = Predict[x -> y] running for hours and I have now idea if I should kill it or not. I'm looking for some rough bounds for an estimate of how long <...
11
votes
1answer
902 views

Neural Networks in Predict function

I'm trying to reproduce the result giving by a Predict function with a Neural Network as the chosen method. So, I'm training from this set: ...
3
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0answers
75 views

Undo automatic update [closed]

I was working with Predict function (with a neural network and today, and when I executed the same notebook I have been working for some time, Machine Learning package was automatically updated (it ...