fix typos

readme.md

@@ -12,7 +12,7 @@ Unlike pairSEQ, which calculates p-values for every TCR alpha/beta overlap and c
 against a null distribution, BiGpairSEQ does not do any statistical calculations
 directly.
 
-BiGpairSEQ creates a [weightd bipartite graph](https://en.wikipedia.org/wiki/Bipartite_graph) representing the sample plate.
+BiGpairSEQ creates a [weighted bipartite graph](https://en.wikipedia.org/wiki/Bipartite_graph) representing the sample plate.
 The distinct TCRA and TCRB sequences form the two sets of vertices. Every TCRA/TCRB pair that share a well
 are connected by an edge, with the edge weight set to the number of wells in which both sequences appear.
 (Sequences present in *all* wells are filtered out prior to creating the graph, as there is no signal in their occupancy pattern.)
@@ -131,10 +131,13 @@ Options when making a Sample Plate file:
     * Standard deviation size 
   * Exponential
     * Lambda value
-      * *(Based on the slope of the graph in Figure 4C of the pairSEQ paper, the distribution of the original experiment was exponential with a lambda of approximately 0.6. (Howie, et al. 2015))*
+      * *(Based on the slope of the graph in Figure 4C of the pairSEQ paper, the distribution of the original experiment was approximately exponential with a lambda ~0.6. (Howie, et al. 2015))*
 * Total number of wells on the plate
-* Number of sections on plate
-* Number of T cells per well
+* Well populations random or fixed
+  * If random, minimum and maximum population sizes
+  * If fixed
+    * Number of sections on plate
+    * Number of T cells per well
       * per section, if more than one section
 * Dropout rate
 
@@ -251,7 +254,7 @@ slightly less time than the simulation itself. Real elapsed time from start to f
 ## TODO
 
 * ~~Try invoking GC at end of workloads to reduce paging to disk~~ DONE
-* Hold graph data in memory until another graph is read-in? ~~ABANDONED~~ ~~UNABANDONED~~ DONE
+* ~~Hold graph data in memory until another graph is read-in? ABANDONED UNABANDONED~~ DONE
   * ~~*No, this won't work, because BiGpairSEQ simulations alter the underlying graph based on filtering constraints. Changes would cascade with multiple experiments.*~~
   * Might have figured out a way to do it, by taking edges out and then putting them back into the graph. This may actually be possible.
   * It is possible, though the modifications to the graph incur their own performance penalties. Need testing to see which option is best.
@@ -260,7 +263,7 @@ slightly less time than the simulation itself. Real elapsed time from start to f
   * ~~Apache Commons CSV library writes entries a row at a time~~ 
     * _Got this working, but at the cost of a profoundly strange bug in graph occupancy filtering. Have reverted the repo until I can figure out what caused that. Given how easily Thingiverse transposes CSV matrices in R, might not even be worth fixing._
 * Re-implement command line arguments, to enable scripting and statistical simulation studies
-* Implement sample plates with random numbers of T cells per well.
+* ~~Implement sample plates with random numbers of T cells per well.~~ DONE
   * Possible BiGpairSEQ advantage over pairSEQ: BiGpairSEQ is resilient to variations in well population sizes on a sample plate; pairSEQ is not.
     * preliminary data suggests that BiGpairSEQ behaves roughly as though the whole plate had whatever the *average* well concentration is, but that's still speculative.
 * Enable GraphML output in addition to serialized object binaries, for data portability