How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

What could be the cause to have an E.coli DH10B transformed with pUC18 to grow in MKL + ampicillin but is not LAC+?

Hello everyone, I did a transformation of E. coli DH10B using pUC18 plasmid. The bacterias did grow on MKL medium with ampicillin but the colonies showed a white/pink colour and the medium was...

08 February 2021 9,720 3 View

Can I know how to apply contourlet transform for signals in MATLAB?Must I first convert 1D signal to 2D image in order to do this method?

Can I know how to apply contourlet transform for signals in MATLAB?Must I first convert 1D signal to 2D image in order to do this method?

01 February 2021 3,735 3 View

What are the pretrained-language-model that is obviously better than BERT and RoBERTa?

19 January 2021 602 2 View

WHOQOL - bref. test: how to conduct the correction?

18 January 2021 7,257 2 View

How to compute the phase from a fringe pattern using Hilbert Huang Transform in MATLAB?

I have computed line Wise IMF from the fringe data using empirical mode decomposition (EMD). For each line Segment I have more than five IMF sets but i am not able to understand that how to...

10 January 2021 5,036 1 View

Which statistical test is best to run on a heavily right-skewed dependent variable?

My dependent variable when graphed is heavily right-skewed. All attempts to transform it has failed (Log, Log10, Sqrt, ..). The most ideal test I would like to run is a multiple linear...

07 January 2021 2,705 4 View

How can I estimate and plot Logarithmic Error Bars (in Excel, preferably)?

Dear Dr.colleagues, I am currently plotting the dynamics of an infection in Excel. For each sampling day, I plotted the mean infection load of the population, using the standard error for the...

07 January 2021 2,069 3 View

Why I am not getting cultures of DH5 alpha and BL21 cells after transformation?

Even if I get them cultured colonies are very less and almost not transferable and grows very slowly in the media. I checked cells by transforming with control vector. I changed antibiotic also...

06 January 2021 1,013 3 View

How i can fix this problem for python jupyter" Unable to allocate 10.4 GiB for an array with shape (50000, 223369) and data type int8"?

my code: #building tf-idf from sklearn.feature_extraction.text import TfidfVectorizer vectorizer = TfidfVectorizer(analyzer = message_cleaning) #X = vectorizer.fit_transform(corpus) X =...

28 December 2020 3,624 2 View