Examples to build region-level connectivity network

Xubo Yue, Chia-Wei Hsu, Jian Kang

2021-05-17

Vignette Info

This vignette provides you a simple example to construct region-level connectivity network. In example below, when the programming is running, the progress bar will be generated.

require(brainKCCA)
#> Loading required package: brainKCCA
require(oro.nifti)
#> Loading required package: oro.nifti
#> oro.nifti 0.10.3
# write data into temp file. The generated NIfTI
# provide you a general structure of fMRI data.
filePath <- tempdir()
# the nii.gz fMRI imaging file is created (toy example)
oro.nifti::writeNIfTI(brainKCCA::input_img, paste(filePath, "/",  "temp", sep=""))
#read fMRI data
testcase1 <- nii2RData(niiFile1 = "temp", resolution = "3mm", imgPath = filePath)
#> Reading nii files...this progress may take a long time... 
#> 
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#>  reading data  1 
#> 
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#>  Completed...
result1<-permkCCA_multipleRegion(imageDat = testcase1, region = c(1,5,10))
#> 
#>  Checking data format... 
#> 
#>  processed image data detected, do not need to read nii data again... 
#> Calculating KCC... 
#> 
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#> 
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#> 
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summary_kcca(result1)
#> 
#>  summary of kcca object  1  generated by 'permkCCA_multipleRegion' function:

index1	index2	region1	region2	pvalue
1	5	PreCG.L	ORBsup.L	1
1	10	PreCG.L	ORBmid.R	0.495
5	10	ORBsup.L	ORBmid.R	0