diff --git a/generic_data/Functions/functions.xml b/generic_data/Functions/functions.xml
index d1fe491..7a51524 100644
--- a/generic_data/Functions/functions.xml
+++ b/generic_data/Functions/functions.xml
@@ -49,34 +49,6 @@
         <info_brief>skewness() function</info_brief>
         <new_kernel>#skew</new_kernel>
     </function>
-    <function name="covariance_(,,)" args="2" kind="time" group="stat">
-	<prompts>
-        	<prompt>input window time in secs</prompt>
-	</prompts>
-        <info_brief>covariance() function for two params</info_brief>
-        <new_kernel>#covariance</new_kernel>
-    </function>
-    <function name="pearson_(,,)" args="2" kind="time" group="stat">
-	<prompts>
-        	<prompt>input window time in secs</prompt>
-	</prompts>
-        <info_brief>Pearson coefficient of two parameters</info_brief>
-        <new_kernel>#pearson</new_kernel>
-    </function>
-    <function name="kendall_(,,)" args="2" kind="time" group="stat">
-	<prompts>
-        	<prompt>input window time in secs</prompt>
-	</prompts>
-        <info_brief>Kendall coefficient of two parameters</info_brief>
-        <new_kernel>#kendall</new_kernel>
-    </function>
-    <function name="spearman_(,,)" args="2" kind="time" group="stat">
-	<prompts>
-        	<prompt>input window time in secs</prompt>
-	</prompts>
-        <info_brief>Spearman coefficient of two parameters</info_brief>
-        <new_kernel>#spearman</new_kernel>
-    </function>
     <function name="mean_sm_(,)" args="1" kind="sliding" group="stat">
 	<prompts>
         	<prompt>input averaging time in secs</prompt>
@@ -142,37 +114,11 @@
         <info_brief>Remove Spikes ( ! Experimental ! ) : filter(param, factor,nPoints)</info_brief>
         <new_kernel>#filter</new_kernel>
     </function>
-    <function name="BCain(,)" args="2" kind="model" group="space">
-        <default_args>"",mag</default_args>
-        <info_brief>Cain model for Mars Magnetic Field</info_brief>
-        <new_kernel>#bcain</new_kernel>
-    </function>
     <function name="vAlfven(,)" args="2" kind="physics" group="space">
         <prompt_param>density[cm^⁻3], b_magnitude[nT]</prompt_param>
         <info_brief>Alfven velocity Valfven(density[cm^⁻3], b_magnitude[nT])</info_brief>
         <new_kernel>alfvenVelocity</new_kernel>
     </function>
-    <function name="mlt_maglib(,)" args="1" kind="physics" group="space">
-        <prompts>
-                <prompt type="list" subtype="external_fields" default="1">External field:</prompt>
-        </prompts>
-        <info_brief>Compute MLT from geographical spacecraft position (cartesian coordinates and in Earth radius)</info_brief>
-        <new_kernel>#maglib_mlt</new_kernel>
-    </function>
-    <function name="invlat_maglib(,)" args="1" kind="physics" group="space">
-        <prompts>
-                <prompt type="list" subtype="external_fields" default="1">External field:</prompt>
-        </prompts>
-        <info_brief>Compute InvLat from geographical spacecraft position (cartesian coordinates and in Earth radius)</info_brief>
-        <new_kernel>#maglib_invlat</new_kernel>
-    </function>
-    <function name="lparam_maglib(,)" args="1" kind="physics" group="space">
-        <prompts>
-                <prompt type="list" subtype="external_fields" default="1">External field:</prompt>
-        </prompts>
-        <info_brief>Compute L Param from geographical spacecraft position (cartesian coordinates and in Earth radius)</info_brief>
-        <new_kernel>#maglib_lparam</new_kernel>
-    </function>
 
      <function name="perreault78(,,)" args="3" kind="model" group="space">
         <info_brief>Perreault and Akasofu 1978 model u = perreault78(E_mag, B_mag, theta_p)</info_brief>
@@ -210,30 +156,6 @@
         </info_brief>
         <new_kernel>lopez90</new_kernel>
     </function>
-    <function name="pv_ionos_dn(,)" args="2" kind="model" group="space">
-        <prompt_param></prompt_param>
-        <default_args>alt(Km), sza(Radians)</default_args>
-        <info_brief>
-            Electron Density around Venus &lt;br/&gt;
-            dn = pv_ionos_dn(alt, sza) &lt;br/&gt;
-	    alt is the altitude in Km 
-	    sza is the solat zenith angle in radians 
-            dn is the base 10 log of the model electron density in no/cc
-        </info_brief>
-        <new_kernel>pv_ionos_dn</new_kernel>
-    </function>
-    <function name="pv_ionos_te(,)" args="2" kind="model" group="space">
-        <prompt_param></prompt_param>
-        <default_args>alt(Km), sza(Radians)</default_args>
-        <info_brief>
-            Electron temperature around Venus &lt;br/&gt;
-            te = pv_ionos_dn(alt, sza) &lt;br/&gt;
-            alt is the altitude in Km
-            sza is the solat zenith angle in radians
-            te is in log10 deg K
-        </info_brief>
-        <new_kernel>pv_ionos_te</new_kernel>
-    </function>
     <function name="framesTransformation(,,,)" args="1" kind="frames" group="space">
 	<prompts>
         	<prompt type="list" subtype="frames" default="GSM">Input frame:</prompt>
--
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