ECov, UNKNOWN,\
UNKNOWN, -2, "Unknown covariance",\
FUNCTION, -1, "External covariance function",\
NUGGET, 0, "Nugget effect",\
EXPONENTIAL, 1, "Exponential",\
SPHERICAL, 2, "Spherical",\
GAUSSIAN, 3, "Gaussian",\
CUBIC, 4, "Cubic",\
SINCARD, 5, "Sine Cardinal",\
BESSEL_J, 6, "Bessel J",\
BESSEL_K, 7, "Bessel K",\
GAMMA, 8, "Gamma",\
CAUCHY, 9, "Cauchy",\
STABLE, 10, "Stable",\
LINEAR, 11, "Linear",\
POWER, 12, "Power",\
ORDER1_GC, 13, "First Order Generalized covariance",\
SPLINE_GC, 14, "Spline Generalized covariance",\
ORDER3_GC, 15, "Third Order Generalized covariance",\
ORDER5_GC, 16, "Fifth Order Generalized covariance",\
COSINUS, 17, "Cosine",\
TRIANGLE, 18, "Triangle",\
COSEXP, 19, "Cosine Exponential",\
REG1D, 20, "1-D Regular",\
PENTA, 21, "Pentamodel",\
SPLINE2_GC, 22, "Order-2 Spline",\
STORKEY, 23, "Storkey covariance in 1-D",\
WENDLAND0, 24, "Wendland covariance (2,0)",\
WENDLAND1, 25, "Wendland covariance (3,1)",\
WENDLAND2, 26, "Wendland covariance (4,2)",\
MARKOV, 27, "Markovian covariances"
1.8.11