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# Rmetrics is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# Rmetrics is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General
# Public License along with this library; if not, write to the
# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
################################################################################
test.removeNA =
function()
{
# Create matrix object:
set.seed(1985)
M = 5
N = 20
x = matrix(round(rnorm(M*N), 3), ncol = M)
colnames(x) = 1:M
rownames(x) = 1:N
nNA = 10
nCol = trunc(runif(nNA, 1, M+1))
nRow = trunc(runif(nNA, 1, N+1))
for (i in 1:nNA) x[nRow[i], nCol[i]] = NA
print(x)
ans = removeNA(x)
print(ans)
# Create data.frame object:
x.df = as.data.frame(x)
class(x.df)
ans = removeNA(x.df)
print(ans)
class(ans)
# Create timeSeries object:
tD = timeCalendar(m = 1, d = 1:N)
x.tS = timeSeries(x, tD)
print(x.tS)
ans = removeNA(x.tS)
print(ans)
class(ans)
# Return Value:
return()
}
# ------------------------------------------------------------------------------
test.substituteNA =
function()
{
# Create matrix object:
set.seed(1985)
M = 5
N = 20
x = matrix(round(rnorm(M*N), 3), ncol = M)
colnames(x) = 1:M
rownames(x) = 1:N
nNA = 10
nCol = trunc(runif(nNA, 1, M+1))
nRow = trunc(runif(nNA, 1, N+1))
for (i in 1:nNA) x[nRow[i], nCol[i]] = NA
print(x)
# Substitute:
ans = substituteNA(x)
print(ans)
ans = substituteNA(x, "mean")
print(ans)
ans = substituteNA(x, "median")
print(ans)
# Create data.frame object:
x.df = as.data.frame(x)
print(x.df)
class(x.df)
# Substitute:
ans = substituteNA(x.df)
print(ans)
ans = substituteNA(x.df, "mean")
print(ans)
ans = substituteNA(x.df, "median")
print(ans)
# Create timeSeries object:
tD = timeCalendar(m = 1, d = 1:N)
x.tS = timeSeries(x, tD)
print(x.tS)
class(x.tS)
# Substitute:
ans = substituteNA(x.tS)
print(ans)
ans = substituteNA(x.tS, "mean")
print(ans)
ans = substituteNA(x.tS, "median")
print(ans)
# Return Value:
return()
}
# ------------------------------------------------------------------------------
test.interpNA =
function()
{
# Interpolate Column-by-Column
# Create matrix object:
set.seed(1985)
M = 5
N = 20
x = matrix(round(rnorm(M*N), 3), ncol = M)
colnames(x) = 1:M
rownames(x) = 1:N
nNA = 10
nCol = trunc(runif(nNA, 1, M+1))
nRow = trunc(runif(nNA, 1, N+1))
for (i in 1:nNA) x[nRow[i], nCol[i]] = NA
print(x)
# Interpolate:
ans = interpNA(x, "linear")
print(ans)
ans = interpNA(x, "before")
print(ans)
ans = interpNA(x, "after")
print(ans)
# Return Value:
return()
}
################################################################################
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