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1

This is the equity line i got after i repeated your code. how is this good ? may be you have run with only one set of numbers. any ways here are a few things you can do to come closer to reality : take the close prices as lognormal distribution instead of a normal distribution. you are adding up the returns later on. this is only right if you have ...

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An easy way to perform what you need is do it this way: if your data are daily then : > prices <- data$cl > log_returns <- diff(log(prices), lag=1) would provide you with daily log returns, if you change the$lag=1$to$lag=5\$ then you will get weekly moving log returns.

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