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99_helper_functions.R
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99_helper_functions.R
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get_range_help <- function(thetas){
values_min <- round(0.1 * thetas[1], 3)
values_med <- thetas[1]
values_high <- 10 * thetas[1]
to_test <- function(eff.range) {log((0.05 * thetas[2] -
cov.mat(h = eff.range, theta = thetas))^2)}
results <- optim(fn = to_test, par = values_med,
lower = values_min,
upper = values_high,
method = 'L-BFGS-B')
return(results$par)
}
get_memory_values <- function(this_field){
return(switch(as.character(this_field@nsize),
'784' = switch(this_field@parsetting,
'low' = switch(as.character(this_field@gridded),
'TRUE' = c(30592, 59217),
'FALSE' = c(30592, 47127)
),
'high' = switch(as.character(this_field@gridded),
'TRUE' = c(96828, 120489),
'FALSE' = c(96828, 100884)
)
),
'3025' = switch(this_field@parsetting,
'low' = switch(as.character(this_field@gridded),
'TRUE' = c(462339, 1093212),
'FALSE' = c(462339, 1093212)
),
'high' = switch(as.character(this_field@gridded),
'TRUE' = c(1438823, 2097923),
'FALSE' = c(1500000, 2097923)
)
)
) )
}
cov.mat2 <- function (h, theta, ..., eps = getOption('spam.eps'))
{
if (is.spam(h)) {
tmp <- h@entries/theta[1]
ypos <- tmp < eps
npos <- !ypos
if (any(ypos)) {
h@entries[ypos] <- theta[2]
}
if (any(npos)) {
h@entries[npos] <- theta[2] * (1 - theta[4]) * (((2^(-(theta[3] -
1)))/gamma(theta[3])) * (tmp[npos]^theta[3]) *
besselK(tmp[npos], nu = theta[3]))
}
}
else {
tmp <- c(h)/theta[1]
ypos <- tmp < eps
npos <- !ypos
if (any(ypos)) {
h[ypos] <- theta[2]
}
if (any(npos)) {
h[npos] <- theta[2] * (1 - theta[4]) * (((2^(-(theta[3] - 1)))/gamma(theta[3])) *
(tmp[npos]^theta[3]) * besselK(tmp[npos], nu = theta[3]))
}
}
return(h)
}
cov.sph_1 <- function (h, theta, ..., eps = getOption('spam.eps'))
{
if (is.spam(h)) {
tmp <- h@entries/theta[1]
if (theta[3] > eps) {
ypos <- tmp <= eps
npos <- tmp >= 1
ypos2 <- !(ypos | npos)
if (any(ypos)) {
h@entries[ypos] <- theta[2]
}
}
else {
npos <- tmp >= 1
ypos2 <- !npos
}
if (any(ypos2)) {
ttmp <- tmp[ypos2]
h@entries[ypos2] <- if (abs(theta[2] - 1) > eps) {
theta[2] * (1 - theta[3]) * (1 - 1.5 * ttmp + 0.5 * (ttmp * ttmp) *
ttmp)
}
else {
(1 - 1.5 * ttmp + 0.5 * (ttmp * ttmp) * ttmp)
}
}
if (any(npos)) {
h@entries[npos] <- 0
}
}
else {
tmp <- c(h)/theta[1]
if (theta[3] > eps) {
ypos <- tmp <= eps
npos <- tmp >= 1
ypos2 <- !(ypos | npos)
if (any(ypos)) {
h[ypos] <- theta[2]
}
}
else {
npos <- tmp >= 1
ypos2 <- !npos
}
if (any(ypos2)) {
ttmp <- tmp[ypos2]
h[ypos2] <- if (abs(theta[2] - 1) > eps)
theta[2] * (1 - theta[3]) * (1 - 1.5 * ttmp + 0.5 * (ttmp * ttmp) *
ttmp)
else (1 - 1.5 * ttmp + 0.5 * (ttmp * ttmp) * ttmp)
}
if (any(npos)) {
h[npos] <- 0
}
}
return(h)
}
cov.wend1_1 <- function (h, theta, ..., eps = getOption('spam.eps'))
{
if (is.spam(h)) {
tmp <- h@entries/theta[1]
ypos <- tmp < eps
ypos2 <- tmp >= eps & tmp < 1
npos <- tmp >= 1
if (any(ypos)) {
h@entries[ypos] <- theta[2]
}
if (any(ypos2)) {
h@entries[ypos2] <- theta[2] * (1 - theta[3]) * ((1 - tmp[ypos2])^4 *
(4 * tmp[ypos2] + 1))
}
if (any(npos)) {
h@entries[npos] <- 0
}
}
else {
tmp <- c(h)/theta[1]
ypos <- tmp < eps
ypos2 <- tmp >= eps & tmp < 1
npos <- tmp >= 1
if (any(ypos)) {
h[ypos] <- theta[2]
}
if (any(ypos2)) {
h[ypos2] <- theta[2] * (1 - theta[3]) * ((1 - tmp[ypos2])^4 * (4 *
tmp[ypos2] + 1))
}
if (any(npos)) {
h[npos] <- 0
}
}
return(h)
}
cov.wend2_1 <- function (h, theta, ..., eps = getOption('spam.eps'))
{
if (is.spam(h)) {
tmp <- h@entries/theta[1]
ypos <- tmp < eps
ypos2 <- tmp >= eps & tmp < 1
npos <- tmp >= 1
if (any(ypos)) {
h@entries[ypos] <- theta[2]
}
if (any(ypos2)) {
h@entries[ypos2] <- theta[2] * (1 - theta[3]) * ((1 - tmp[ypos2])^6 *
(35 * tmp[ypos2]^2 + 18 * tmp[ypos2] + 3))/3
}
if (any(npos)) {
h@entries[npos] <- 0
}
}
else {
tmp <- c(h)/theta[1]
ypos <- tmp < eps
ypos2 <- tmp >= eps & tmp < 1
npos <- tmp >= 1
if (any(ypos)) {
h[ypos] <- theta[2]
}
if (any(ypos2)) {
h[ypos2] <- theta[2] * (1 - theta[3]) * ((1 - tmp[ypos2])^6 * (35 *
tmp[ypos2]^2 + 18 * tmp[ypos2] + 3))/3
}
if (any(npos)) {
h[npos] <- 0
}
}
return(h)
}