Error message when using findpeaks and csvread
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Hi,
I am using findpeaks to detect peaks on ECG data (attached). I get the following error message:
Error using findpeaks>parse_inputs (line 325)
Error: File: strncmpi.m Line: 1 Column: 1
The input character is not valid in MATLAB statements or expressions.
Error in findpeaks (line 132)
= parse_inputs(Yin,varargin{:});
Also, when loading the csv file using csvread I get the following error:
usage: unique (x) or unique (x, 'rows')Undefined function or variable 'toascii'.
Error in dlmread (line 143)
throw(exception);
Error in csvread (line 47)
m=dlmread(filename, ',', r, c);
I could open the csv file and find peaks successfully maybe 2 weeks ago but now it fails with the same code.
Many thanks,
SJ
댓글 수: 1
KSSV
2017년 7월 28일
What code you have tried? Show us here.....also what does which findpeaks shows on the screen?
답변 (1개)
Cong Ba
2017년 8월 1일
Try this (remember to put the csv file in the working folder):
data = csvread('baselinesmooth.csv');
[pks,locs] = findpeaks(data);
plot(data); hold on;
plot(locs, pks, 'o');
If this doesn't work correctly, could you tell us the version of MATLAB you're using?
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