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str2double breaks when you pass in a vector?
this works: double = str2double('06012015'); but this doesn't: doubles = str2double(['06012015' '06022015']); whos d...
mehr als 9 Jahre vor | 2 Antworten | 1
2
AntwortenFrage
option chains and neural nets
it seems reasonable to think of option chains as having some predictive power with respect to the price of their underlying secu...
fast 10 Jahre vor | 1 Antwort | 0
1
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timeseries and categorical data
I'd like to chart two time series: closing prices, by day, for a given stock, and a set of buy/sell recommendations for that sto...
fast 10 Jahre vor | 0 Antworten | 0
0
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how to store a series of single rows that have different numbers of columns
I have a loop that creates a series of single rows that have different numbers of columns I need to collect/store these as th...
etwa 10 Jahre vor | 3 Antworten | 0
3
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using 2D data as input for a neural network
have data that i'd like to use as input for a pattern recognition neural net project the data comes as a series of tables, ea...
etwa 10 Jahre vor | 1 Antwort | 0
1
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how to use histogram(data, num_bins)?
I have a 8945x1 double array, and I want to view it's distribution, as a histogram first try: histogram(data), here's what I ...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
how to use histogram(data, num_bins)?
I have a 8945x1 double array, and I want to view it as a histogram first try: histogram(data), here's what I get: <</matla...
etwa 10 Jahre vor | 1 Antwort | 0
1
AntwortFrage
creating a timeseries inserts extra value at beginning of time vector
I'm using this form to create a timeseries: ts = timeseries(data_vector, datestring_vector) but the ts gets an extra row a...
etwa 10 Jahre vor | 0 Antworten | 0
0
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why is corrcoef returning NaN's?
I'm passing in a single matrix, lots of rows (est 5k), 2 cols -- there are no NaNs in the data, and the data is all doubles, f...
etwa 10 Jahre vor | 1 Antwort | 0
1
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neural nets: validation vs testing?
wondering what the real difference is between validation and testing? both are tests of the net, it would seem thanks
etwa 10 Jahre vor | 2 Antworten | 0
