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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...
oltre 9 anni fa | 2 risposte | 1
2
risposteDomanda
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...
quasi 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
quasi 10 anni fa | 0 risposte | 0
0
risposteDomanda
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...
circa 10 anni fa | 3 risposte | 0
3
risposteDomanda
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...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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 ...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
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...
circa 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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
circa 10 anni fa | 2 risposte | 0
