The geographical distribution
of the linear trend of 0 to 700 m heat content for 1955 to 2003 for the World Ocean is shown in Figure 5.2.
# 242 Jim Eager in # 229 showed graphs
of the linear trend of monthly data from January 1999 through December 2008.
(Top) Distribution
of linear trends of annual land precipitation amounts over the period 1901 to 2005 (% per century) and (middle) 1979 to 2005 (% per decade).
The geographical distribution
of the linear trend of 0 to 700 m heat content for 1955 to 2003 for the World Ocean is shown in Figure 5.2.
The time series approximately corresponds to a trend, and this pattern and its variations account for 67 %
of the linear trend of PDSI from 1900 to 2002 over the global land area.
You'd have to ask the chart's creator why they gave that linearization instead
of the linear trend of the raw data...
Not exact matches
Finally, I showed that a simple extrapolation
of this robust
linear trend means that Pharma's IRR will hit 0 % by 2020, which implies that the industry is now on the brink
of terminal decline as it enters a vicious cycle
of negative growth with diminishing sales and investment into R&D.
Finally, by substituting the historic
linear trend above into the IRR term
of this equation, and the industry average investment period
of 13 years into the c term, we get the following formula, which shows that nominal R&D productivity / ROI currently stands at about 1.2 (i.e., we get only 20 % back on top
of our original R&D investment after 13 years), is declining exponentially by about 10 % per year, and will hit 1.0 (zero net return on investment) by 2020:
A simple
linear extrapolation
of their data suggests that by 2027 the
trend in technological improvement in the oilsands will catch up to the declining efficiency
of conventional oil production.
This contention is critical in relation to Hartshorne's view
of personal identity, which stresses the
linear or «personally ordered» sequences or «
trends of becoming» (k, 1, m, n).
In both surveys there were significant
linear associations between socio - economic deprivation and intakes
of energy, non-milk extrinsic sugars (NMES) as a percentage
of food energy, sugar - sweetened beverages, confectionery, crisps and savoury snacks and leisure - time screen use (all higher among children in more deprived areas), while intakes
of fruit, fruit juice and vegetables showed the opposite
trend.
However, the odds
of diarrhoeal disease increased with the time since breast feeding cessation (pT = 0.002 for
linear trend in all infants).
The number
of stair - related injuries decreased 11.6 % during the study period, with a significant
linear trend from 101335 cases in 1999 to 89619 cases in 2008 (m = − 1103, P =.011).
«So you end up with this
linear trend of age - progressive volcanoes,» Jackson said.
(Bottom) Patterns
of linear global temperature
trends from 1979 to 2005 estimated at the surface (left), and for the troposphere (right) from the surface to about 10 km altitude, from satellite records.
To assess whether the decline was greater at older ages with the test for
linear trend, we reran the analysis using the categories
of age as a continuous variable.
Satellite data shows a
linear trend of 3.3 ± 0.4 mm / year and the tide gauge reconstruction
trend is slightly less.
The increases in frequency and duration metrics translate to 30 additional marine heatwave days per year by the end
of the 35 - year period (p < 0.01; based on a
linear trend) from a baseline level
of about 25 days in the 1980s (Fig. 2).
There have certainly been some large El Nino events over the past couple decades, and this leverages any
linear trend estimates
of the long - term behavior (such as those shown in the recent Vecchi et al paper, which we'll be talking about more in a follow - up post to this).
Because
of the stratospheric warming episodes following major volcanic eruptions, the
trends are far from being
linear.
Measurements
of Gl 105A's radial velocity over 12 years show a
linear trend and slope which is consistent with these orbital constraints and a nearly face - on orbit.
The
trend is not
linear, and the warming from the first 50 years
of instrumental record (1850 — 1899) to the last 5 years (2001 — 2005) is 0.76 °C ± 0.19 °C.
The
linear trend is that
of warming.
Third, to fit global temperatures to CO2 over a period
of 30 years and and use a
linear trend to extrapolate for the next 50 years is asking for trouble.
Figure 2: The data (green) are the average
of the NASA GISS, NOAA NCDC, and HadCRUT4 monthly global surface temperature anomaly datasets from January 1970 through November 2012, with
linear trends for the short time periods Jan 1970 to Oct 1977, Apr 1977 to Dec 1986, Sep 1987 to Nov 1996, Jun 1997 to Dec 2002, and Nov 2002 to Nov 2012 (blue), and also showing the far more reliable
linear trend for the full time period (red).
In addition to the orbital motion caused by the transiting planet, we detect a possible
linear trend in the radial velocity
of KELT - 22A suggesting the presence
of another relatively nearby body that is perhaps non-stellar.
Why is the «volume cold enough for ozone loss» line so perfectly
linear, and what sort
of trend do the «ozone loss» dots show?
They fail to mention it also removes any
linear trend, which is obvious from just a few steps
of basic arithmetic.
Based on the
linear trend, for the 0 to 3,000 m layer for the period 1961 to 2003 there has been an increase
of ocean heat content
of approximately 14.2 ± 2.4 × 1022 J, corresponding to a global ocean volume mean temperature increase
of 0.037 °C during this period.
A comparison
of the
linear trends from these two series indicates that about 69 %
of the increase in ocean heat content during 1955 to 1998 (the period when estimates from both time series are available) occurred in the upper 700 m
of the World Ocean.
Tomé, A., and P.M.A. Miranda, 2004: Piecewise
linear fitting and
trend changing points
of climate parameters.
The most notable aspect
of the graph is the downward
trend, and it is arguable that a
linear trend no longer cuts it as a fit.
Willis 2008 speculates that there is most likely a systematic error in at least one
of the three observing systems which is introducing a
linear trend.
Figure 5.5 shows the
linear trends (based on pentadal anomaly fields)
of zonally averaged salinity in the upper 500 m
of the World Ocean and individual ocean basins (Boyer et al., 2005) from 1955 to 1998.
Tests
of linear trend across increasing quintiles
of intake were conducted by assigning the medians
of intakes in quintiles treated as a continuous variable.
Age - adjusted geometric mean plasma concentrations
of CRP, E-selectin, and sICAM - 1
trended toward significant decreases with increasing quintiles
of magnesium intake (P for
linear trend = 0.003 for CRP, 0.001 for E-selectin, and 0.03 for sICAM - 1)(Table 3).
Tests for
trend with the use
of simple
linear regression analysis were performed by modeling the median values
of each fiber category as a continuous variable.
Tests
of linear trend across categories
of coffee consumption were performed by assigning participants the midpoint
of their coffee - consumption category and entering this new variable into a separate Cox proportional - hazards regression model.
The relationship between an athlete personal best in competition and back squat, bench press and power clean 1RM was determined via general
linear model polynomial contrast analysis and regression for a group
of 53 collegiate elite level throwers (24 males and 29 females); data analysis showed significant
linear and quadratic
trends for distance and 1RM power clean for both male (
linear: p ≤ 0.001, quadratic: p ≤ 0.003) and female (
linear: p ≤ 0.001, quadratic: p = 0.001) suggesting how the use
of Olympic - style weightlifting movements — the clean, in this particular case, but more in general explosive, fast, athletic - like movements — can be a much better alternative for sport - specific testing for shot putters (Judge, et al, 2013).
A test for
linear trend of effects across coffee consumption categories was performed by regressing each log RR on the ordered categorical variable for coffee in 5 levels using a random - effect meta - regression model.
This is accomplished by using only that portion
of the achievement
of a gender or racial group that can not be explained by a
linear time
trend and the overall gender and racial composition
of the group's cohort.
In addition, the regression
of a
linear trend model can produce a coefficient
of determination, r ².
While using a percent growth rate for free cash flows might be conventional, mathematically convenient and easier to convey to others, it is not as accurate or conservative as using an absolute rate
of change from a
linear trend model.
For the other part
of your question, inflation is an annualized percentage, so an inflation rate
of 12 % means prices are 12 % higher than they were a year ago, so if you extrapolate that
linear trend, prices will rise (again, on average) 1 % in a month.
But even though Call
of Duty: WWII continues the typical
trend of linear heroic storytelling mixed with incredible and explosive action set - pieces, there are a few small changes that makes the whole experience differ slightly from previous campaigns.
These young artists sought a decisive break with tradition yet were skeptical
of modernism's
linear trend toward reductive abstraction.
The standard deviation
of the residuals from a
linear regression to annual averages 1975 - 2007 is 0.472, so we expect a range
of variation
of roughly + / - 0.94 deg.C from the long - term
trend.
The rate
of warming «has not changed since 1880» and «is still ~ 0.6 C / century» because you've chosen to plot a
linear trend through the data and that's the slope
of it.
The use
of regression to identify the relationship between the differences would only break down if the underlying
trend was
linear.
BPL: A
trend is present if the
linear regression
of a time series against elapsed time is significantly different from zero.