<div dir="ltr">Hi Wenjia,<div><br></div><div>It's impossible to give specific advice with no extra information.</div><div><br></div><div>How slow?</div><div>Is the data read at all?</div><div>Any error messages?</div><div>What script are you exactly running and what is the output?</div><div>See: <a href="http://www.fieldtriptoolbox.org/faq/how_to_ask_good_questions_to_the_community">http://www.fieldtriptoolbox.org/faq/how_to_ask_good_questions_to_the_community</a></div><div><br></div><div>I would also check your computer resources (CPU and memory) during loading to see if you are running into a memory/CPU problem specific for your system.</div><div>Finally, I would start with no filters. They sometimes take a while.</div><div><br></div><div>Cheers,</div><div>Stephen</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 21 September 2017 at 17:30, 张文嘉 <span dir="ltr"><<a href="mailto:zhangwenjia2732@126.com" target="_blank">zhangwenjia2732@126.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div><br></div><div><br></div><div><span style="font-size:13px">Dear all,</span></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px"><br></span></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px">I have some problems in reading data into
fieldtrip.</span></div><div><span style="font-size:13px"><span style="font-size:13px;font-family:Helvetica,sans-serif">Specifically, I used EGI system to record EEG data and preprocessed them with </span><span style="font-size:13px;font-family:Arial,sans-serif">Brainvison analyzer </span></span></div><div><span style="font-size:13px"><span style="font-size:13px;font-family:Helvetica,sans-serif">Then, I</span><span lang="EN-US" style="font-size:13px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:Arial,sans-serif;color:rgb(17,17,17)"> </span><span style="font-size:13px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:Arial,sans-serif;color:rgb(0,0,0)">exported the preprocessed data into generic data format, making 3 files: .eeg, .vhdr and vmrk.</span></span></div><div><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:Arial,sans-serif;color:rgb(0,0,0);font-size:13px">Last, I used ft_definetrial and ft_preprocessing to read these data into
FieldTrip.</span></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px">However, the reading is very very slow.</span></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px"><br></span></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px">I tried to make only 2 channels left and</span> tried methods as follow:</div><div><a href="http://www.fieldtriptoolbox.org/faq/reading_is_slow_can_i_write_my_raw_data_to_a_more_efficient_file_format" target="_blank">http://www.fieldtriptoolbox.<wbr>org/faq/reading_is_slow_can_i_<wbr>write_my_raw_data_to_a_more_<wbr>efficient_file_format</a></div><div><span style="font-family:Helvetica,sans-serif;font-size:13px">But, they all did not work.</span></div><div><br></div><div>Does anyone know
what I am doing wrong? Any advice very appreciated. </div><div>Thank you</div><br><div style="zoom:1">--<br><div>Wenjia</div>
<div>NYU Shanghai</div><div style="clear:both"></div></div></div><br><br><span title="neteasefooter"><p> </p></span><br>______________________________<wbr>_________________<br>
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