2.4. Data analysis
Growth rates were calculated for each tree using a simple linear
regression with DBH as the dependent variable and time as the
independent variable (i.e. the 4 measurement dates). The slope of
the regression gives the growth rate in cm day1, which was
consequently multiplied by 365 to obtain the growth rate in
cm year1. Trees whose DBH was estimated due to presence of
buttresses or lianas, were excluded from the analysis to avoid
errors on individual computed growth rates.