Differences

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--- manual:ras [2014/01/13 12:26] – adds headlines zenke
+++ manual:ras [2016/08/08 20:22] (current) – [ras file format definition] zenke
@@ Line 1: / Line 1: @@
-====== ras format definition ======
+====== ras file format definition ======
-The file extension "ras" is used for spiking data files created by the [[SpikeMonitor]]. The format is a space separated list containing "time  neuronnumber" pairs:
+The ras file format is a human readable ASCII file format to encode spiking activity from a population of numbered neurons. The format is a space separated list containing "time  neuronnumber" pairs, of which time is given in seconds and the neuron id is given as integer:
 <code>
@@ Line 11: / Line 11: @@
 .716600  1464
 </code>
+The neuron number refers to the [[NeuronID]] within a [[SpikingGroup]]. The suggested file extension "ras" and as it is used for created by the [[SpikeMonitor]].
-Time is as usual given in units of seconds. The neuron number refers to the [[NeuronID]] within a [[SpikingGroup]].
+The format can be easily visualized with gnuplot, matplotlib or another function plotter, by plotting it as scatterplot:
+{{ :manual:ras.png |}}
 ===== Merging ras files from multiple ranks =====
-When running in parallel you will often encounter having to merge the ras files from multiple ranks (e.g. output.X.ras). This can be done efficiently using linux ''sort'' program
+When [[parallel execution|running in parallel]] you will often encounter having to merge the ras files from multiple ranks (e.g. output.X.ras). This can be done efficiently using linux ''sort'' program
 <code shell>
 sort -g -m output.*.ras > output.ras
 </code>