IQR(vec) # Error in quantile.default(as.numeric(x), c(0.25, 0.75), na.rm = na.rmERROR! We are not able to calculate the IQR while our data contains NAs.Fortunately, the R programming language provides an easy solution for this problem. We simply have to specify na.rm = TRUE ...
A growing number of studies have used stylized network models of communication to predict brain function from structure. Most have focused on a small set of models applied globally. Here, we compare a large number of models at both global and regional le
Machine learning (ML) has shown its potential to improve patient care over the last decade. In organ transplantation, delayed graft function (DGF) remains a major concern in deceased donor kidney transplantation (DDKT). To this end, we harnessed ML to build personalized prognostic models to pred...
Cox proportional hazards regression using the imputed data sets was conducted to calculate hazard ratios (HRs) and 95% CIs, with incidence of all-cause dementia including subtypes as the dependent variables. The end of the observation included the date of dementia diagnosis, date of death, or ...
The built-in function to calculate the variance is called var: >> xvals = [8 7 5 4 6]; >> myvar = var(xvals) yvar = 2.5000 The standard deviation is the square root of the variance: sd=var The built-in function in MATLAB for the standard deviation is called std; the standard ...
13 Using Doppler tissue imaging of the mitral annulus in the apical four-chamber view, e′ was measured at both the lateral and septal sides and averaged to calculate the E/e′ ratio for estimation of LV filling pressures.14 Peak systolic pulmonary artery pressure was derived from the peak ...
A 2-tailed t-test was used to calculate P values, and < .05 was considered significant. Results Of 13 594 total participants (mean [SD] age of 61.2 [4.6] years), virtually all were White (13 293 participants [98%]). Women who lived in areas with higher levels of green ...
In brief, up to 14 tests are administered and scored with demographically and educa- tionally-adjusted norms to calculate a global T score and T scores for the following putative cognitive domains: motor function, speed of information processing, attention/work- ing memory, learning (memory ...
We proposed a mathematical formula to calculate contact surface area between a tumor and renal parenchyma. We examined the applicability of using contact surface area to predict renal function after partial nephrectomy. We performed this retrospective study in patients who underwent partial nephrectomy ...
For a disease or trait with fine-mapped causal variants and epigenomic information, such as the single-cell assay for transposase-accessible chromatin through sequencing (scATAC-seq), we use g-chromVAR13to calculate bias-corrected Z-scores to estimate trait relevance for each single cell (Fig.1a...