Modified file operator_help for EOFs documentation

src/operator_help.h

@@ -1187,7 +1187,7 @@ static char *MonarithHelp[] = {
     "    the corresponding field of the time step in ifile2 with the",
     "    same month and year is used. The header information in ifile1",
     "    have to be the same as in ifile2. Usually ifile2 is generated",
-    "    by a call of the module MONSTAT.",
+    "    by an operator of the module MONSTAT.",
     "",
     "OPERATORS",
     "    monadd  Add monthly time series",
@@ -1214,7 +1214,7 @@ static char *YmonarithHelp[] = {
     "    the corresponding field of the time step in ifile2 with the",
     "    same month of year is used. The header information in ifile1",
     "    have to be the same as in ifile2. Usually ifile2 is generated",
-    "    by a call of the module YMONSTAT.",
+    "    by an operator of the module YMONSTAT.",
     "",
     "OPERATORS",
     "    ymonadd  Add multi-year monthly time series",
@@ -1241,7 +1241,7 @@ static char *YdayarithHelp[] = {
     "    the corresponding field of the time step in ifile2 with the",
     "    same day of year is used. The header information in ifile1",
     "    have to be the same as in ifile2. Usually ifile2 is generated",
-    "    by a call of the module YDAYSTAT.",
+    "    by an operator of the module YDAYSTAT.",
     "",
     "OPERATORS",
     "    ydayadd  Add multi-year daily time series",
@@ -2748,6 +2748,23 @@ static char *EOFsHelp[] = {
     "    not trustworthy, and a warning will occur. In the latter case we suggest to ",
     "    replace missing values by 0 in ifile. ",
     "    ",
+    "    Environmental settings are available to customize the way the eigenvalue computation",
+    "    is done:",
+    "    CDO_SVD_MODE can be used to set the algorithm which is used to calculate the",
+    "    eigenvalues. Available Options are ",
+    "    (1) 'jacobi' for a one-sided parallel jacobi-algorithm (only executed in parallel if -P ",
+    "    flag is set.",
+    "    (2) 'danielson_lanczos' for a non-parallel d/l algorithm.",
+    "    Default: 'jacobi'",
+    "    ",
+    "    MAX_JACOBI_ITER Is the maximum integer number of annihilation sweeps that is executed",
+    "    if the jacobi-algorithm is used to compute the eigen values. Default: 5",
+    "    ",
+    "    FNORM_PRECISION Is the Frobenius norm of the matrix consisting of an annihilation pair",
+    "    of eigenvectors that is used to determine if the eigenvectors have reached a sufficient level",
+    "     of convergence. If all annihilation-pairs of vectors have a norm below this value, the computation",
+    "    is considered to have converged properly. Otherwise, a warning will occur. Default: 1e-05	",
+    "    ",
     "",
     "OPERATORS",
     "    eof         Calculate EOFs in spatial or time space",