{"cells":[{"metadata":{"_uuid":"d254c340b0a7c23412505827d57436bc6cfef7b7"},"cell_type":"markdown","source":"There will be some kind of vibration involved - let us take a look at the autocorrelation of the signal."},{"metadata":{"_uuid":"a36582f19df217df0482dfb8a3b8db8700147307","_execution_state":"idle","trusted":true,"_kg_hide-output":true},"cell_type":"code","source":"options(digits = 10)\ntrain <- read.csv(\"../input/train.csv\", sep=\",\", nrows=100000)\nacf(train$acoustic_data)\nacf(train$acoustic_data, lag.max = 1000 )","execution_count":null,"outputs":[]},{"metadata":{"trusted":true,"_uuid":"251d6ead78fa178fbf90d614cb632876b7cbe4ad"},"cell_type":"markdown","source":"The acoustic data is beautifully autocorrelated - with short lags, as well as with really long lags."}],"metadata":{"kernelspec":{"display_name":"R","language":"R","name":"ir"},"language_info":{"mimetype":"text/x-r-source","name":"R","pygments_lexer":"r","version":"3.4.2","file_extension":".r","codemirror_mode":"r"}},"nbformat":4,"nbformat_minor":1}