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return 0 when no gazeData (possibly fixes #1724)

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This commit is contained in:
Josh de Leeuw 2021-06-28 13:16:58 -04:00
parent 3d678e08db
commit 1c9ca30d6f
1 changed files with 3 additions and 1 deletions
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4
plugins/jspsych-webgazer-validate.js
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@ -241,6 +241,9 @@
function calculateSampleRate(gazeData){ function calculateSampleRate(gazeData){
var mean_diff = []; var mean_diff = [];
if(gazeData.length == 0){
return 0;
}
for(var i=0; i<gazeData.length; i++){ for(var i=0; i<gazeData.length; i++){
if(gazeData[i].length > 1){ if(gazeData[i].length > 1){
var t_diff = []; var t_diff = [];
@ -255,7 +258,6 @@
} else { } else {
return null; return null;
} }
} }
function validation_done(){ function validation_done(){