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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...
etwa 9 Jahre vor | 2 Antworten | 1
2
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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...
mehr als 9 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...
mehr als 9 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...
mehr als 9 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...
mehr als 9 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 ...
mehr als 9 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...
mehr als 9 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...
fast 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...
fast 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
fast 10 Jahre vor | 2 Antworten | 0
