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POAppend rle result from loop
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copied!<p>I am running a coin-toss simulation with a loop which runs about 1 million times.</p> <p>Each time I run the loop I wish to retain the table output from the RLE command. Unfortunately a simple append does not seem to be appropriate. Each time I run the loop I get a slightly different amount of data which seems to be one of the sticking points.</p> <p>This code gives an idea of what I am doing:</p> <pre><code>N <- 5 #Number of times to run rlex <-NULL #begin loop############################# for (i in 1:N) { #tells R to repeat N number x <-sample(0:1, 100000, 1/2) rlex <-append(rlex, rle(x)) } table(rlex) #doesn't work table(rle(x)) #only 1 </code></pre> <p>So instead of having five separate rle results (in this simulation, 1 million in the full version), I want one merged rle table. Hope this is clear. Obviously my actual code is a bit more complex, hence any solution should be as close to what I have specified as possible.</p> <p>UPDATE: The loop is an absolute requirement. No ifs or buts. Perhaps I can pull out the table(rle(x)) data and put it into a matrix. However again the stumbling block is the fact that some of the less frequent run lengths do not always turn up in each loop. Thus I guess I am looking to conditionally fill a matrix based on the run length number?</p> <p>Last update before I give up: Retaining the rle$values will mean that too much data is being retained. My simulation is large-scale and I really only wish to retain the table output of the rle. Either I retain each table(rle(x)) for each loop and combine by hand (there will be thousands), or I find a programmatic way to keep the data (yes for zeroes and ones) and have one table that is formed from merging each of the individual loops as I go along. </p> <p>Either this is easyish to do, as specified, or I will not be doing it. It may seem a silly idea/request, but that should be incidental to whether it can be done. </p> <p><strong>Seriously last time</strong>. Here is an animated gif showing what I expect to happen. <img src="https://i.stack.imgur.com/GRMDx.gif" alt="enter image description here"></p> <p>After each iteration of the loop data is added to the table. This is as clear as I am going to be able to communicate it.</p>

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